Efficient plate shear blade capable of achieving quantitative cutting

Abstract

The utility model discloses an efficient plate shear blade capable of cutting quantitatively, which comprises two groups of hydraulic cylinders, a tool apron, a tool changing device, a tool rest, a shear blade, a pressing plate, a resetting device and a rotating component, the two groups of hydraulic cylinders are vertically arranged above the tool apron and are parallel to each other, and the output ends of the two groups of hydraulic cylinders are connected with the tool apron; the two sets of tool changing devices are arranged in the tool apron and located at the two ends of the tool apron correspondingly, the tool rest is arranged in the tool apron and located below the tool apron, the two ends of the tool rest are connected with the tool changing devices, and two sets of shear blades are arranged in the tool rest. The two sets of shear blades are vertically arranged in the tool rest, the blade directions of the two sets of shear blades are opposite, the pressing plate is arranged on one side of the tool apron, two sets of reset devices are arranged above the pressing plate, the reset devices are located at the two ends of the pressing plate respectively and connected with the tool apron, and two sets of rotating assemblies are further arranged above the pressing plate. The two rotating assemblies are arranged at the two ends of the pressing plate and located on one side of the reset device.

Description

Technical Field

[0001] The utility model relates to the technical field of shear blades, in particular to a high-efficiency plate shear blade capable of quantitative cutting. Background Art

[0002] Shearing machine is a machine that uses one blade to make a reciprocating linear motion relative to another blade to shear the plate. It uses the moving upper blade and the fixed lower blade, and adopts a reasonable blade gap to apply shear force to metal plates of various thicknesses, so that the plates are broken and separated according to the required size. Shearing machine is a kind of forging machine, and its main function is metal processing industry.

[0003] Chinese patent publication number CN212144735U discloses a high-efficiency plate shearing blade capable of quantitative cutting, comprising a metal shearing blade, a fixing hole being provided on the surface of the metal shearing blade, a shearing block being connected and installed on the inner side of the metal shearing blade, a limiting hole being provided on the inner side of the shearing block, a screw being inserted in the limiting hole for limiting purpose, and nuts being screwed on both ends of the screw, which are located on both sides of the metal shearing blade.

[0004] However, when the above device is actually used, it is impossible to measure the length of the plate to be cut according to the use requirements, so quantitative cutting cannot be performed. Utility Model Content

[0005] The utility model aims to overcome the disadvantages of the prior art that the length of the plate to be cut cannot be measured according to the use requirements, thereby failing to perform quantitative cutting.

[0006] A high-efficiency plate shear capable of quantitative cutting is proposed, comprising a hydraulic cylinder for pushing a knife seat to move up and down, a knife seat for fixing a knife seat, a knife changing device for replacing a shearing blade, a knife seat for fixing the shearing blade, a shearing blade for shearing a plate, a pressing plate for fixing the plate, a resetting device for helping the pressing plate to reset, and a rotating assembly for measuring the length of the plate, wherein the hydraulic cylinders have two groups, both of which are vertically arranged above the knife seat and the two groups of hydraulic cylinders are parallel to each other, and the output ends of the two groups of hydraulic cylinders are connected to the knife seat, and the knife changing device is also provided with two groups, both of which are arranged inside the knife seat, and the two groups of knife changing devices are respectively located on both sides of the knife seat. The tool holder is arranged inside the tool holder according to the length direction of the tool holder, the tool holder is located below the tool holder and both ends of the tool holder are rotatably connected to the tool changing device, two sets of shear blades are arranged inside the tool holder, the two sets of shear blades are vertically arranged inside the tool holder and the blade directions of the two sets of shear blades are opposite, a pressing plate is arranged on one side of the tool holder, two sets of reset devices are arranged above the pressing plate, the reset devices are respectively located at both ends of the pressing plate and the two sets of reset devices are connected to the tool holder, two sets of rotating components are also connected above the pressing plate, the two sets of rotating components are respectively arranged at both ends of the pressing plate and the two sets of rotating components are respectively located on one side of the reset device, and the reset device is arranged on the other side of the reset device. The positioning device includes a fixed seat, a fixed cylinder, a sliding rod, a second guide rod and a second spring. The fixed seat is horizontally arranged on one side of the knife seat and is fixedly connected to the knife seat. The fixed cylinder is vertically connected to one end of the fixed seat. The sliding rod is vertically slidably connected inside the fixed cylinder and the bottom end of the sliding rod is connected to the pressure plate. The rotating component is arranged on the pressure plate and is located on one side of the sliding rod. A second guide rod is vertically arranged at the center position of the fixed cylinder, and the top end of the second guide rod is vertically connected to the fixed cylinder. The second spring is sleeved on the second guide rod, and the second spring is located above the sliding rod. The rotating component includes a shell, a slide rail, A slider, a rotating shaft, a driven wheel, a third guide rod, a third spring and a sensing component. Slide rails are vertically arranged at both ends of the shell, and a slider is arranged inside each slide rail. The two ends of the rotating shaft are rotatably connected to the sliders inside the two slide rails respectively. The driven wheel is sleeved on the rotating shaft and connected to the rotating shaft. Two third guide rods are vertically arranged inside each slide rail, and the two third guide rods pass through the two ends of the slider respectively and are connected to the slide rail. Each third guide rod is sleeved with a third spring, and the third spring is arranged above the slider. The sensing component is arranged inside the shell and connected to the top plate of the shell.

[0007] In the technical solution of the utility model, when the shearing blade shears the plate, the surface of the driven wheel will always be in contact with the upper surface of the plate under the action of the knife seat. Therefore, when the plate is fed into the plate shearing machine, the plate will drive the driven wheel to rotate. When the driven wheel rotates, the rotating shaft will drive the reflective strip to rotate synchronously. At the same time, the sensing component will always measure the number of revolutions of the rotating shaft. The circumference of the rotating shaft remains unchanged. Therefore, the circumference of one rotation of the rotating shaft is equivalent to the length of the plate fed into the plate shearing machine. Therefore, after the sensing device senses that the rotating shaft has rotated to a sufficient number of revolutions, it will transmit a signal to the staff through the signal transmitter. At this time, the staff can stop feeding the plate, and then start the hydraulic cylinder to drive the knife seat and the knife holder to drive the shearing blade to move downward to cut the plate, so as to solve the disadvantage mentioned in the technical background that the length of the plate to be sheared cannot be measured according to the use requirements, and thus quantitative cutting cannot be performed.

[0008] Preferably, the tool holder is provided with a plurality of through holes transversely, each through hole is provided with a group of first screws for fixing the shearing blade, through holes are also provided at both ends of the tool holder, and second screws for fixing the tool holder are provided inside the through holes at both ends of the tool holder. When the shearing blade needs to be replaced, the second screw must be unscrewed first to remove the tool holder from the tool holder, and then the first screw must be unscrewed from the top to the bottom, so that the tool holder can be opened and the shearing blade can be replaced. After replacing the shearing blade, the tool holder can be overlapped again, and then the first screw is screwed to fix the tool holder. While fixing the tool holder, the first screw also fixes the position of the shearing blade in the tool holder to prevent the shearing blade from shaking in the tool holder.

[0009] The preferred technical solution of the utility model is that the tool changing device includes a hinge, a first guide rod and a first spring. The hinge is vertically arranged in a preset slot at both ends of the knife seat, and a through hole is opened at the bottom end of the hinge. One end of the knife holder is rotatably connected to the through hole at the bottom end of the hinge. There are two first guide rods, both of which are vertically connected to the preset slots at both ends of the knife seat, and the two first guide rods pass through the two ends of the hinge respectively and are connected to the inside of the slot. Each first guide rod is sleeved with a first spring, and the two groups of first springs are arranged below the hinge. Two groups of shear blades are arranged inside the knife holder, and the cutting edges of the two groups of shear blades face opposite directions. Therefore, when the cutting edges of one group of shear blades face downward and move downward to shear the plate, the cutting edges of the other group of shear blades face upward at this time and will be placed in the inside of the knife seat and stored. When the shear blades facing downward cut the plate and cause it to collapse, the stored shear blades can be replaced by the tool changing device. The steps are simple and the time for replacing the shear blades is saved.

[0010] Preferably, the lower surface of the pressing plate in contact with the plate is provided with a wear-resistant layer. When the pressing plate is pressed on the surface of the plate, the wear-resistant layer will first contact the surface of the plate to increase the wear resistance and hardness of the pressing plate and prevent the pressing plate from being worn due to friction between the plate and the pressing plate.

[0011] In the preferred embodiment of the technical solution of the utility model, the sensing component includes a reflective strip, an optical code disk, a light emitting diode, a signal transmitter and a battery. The reflective strip is horizontally connected above the rotating shaft, the optical code disk is located above the reflective strip and connected to the top plate of the shell, the light emitting diode is arranged inside the optical code disk and located at one end of the optical code disk, the signal transmitter is located on one side of the optical code disk and fixedly connected to the top plate of the shell, and the signal generator is electrically connected to the optical code disk and the battery, the battery is fixedly connected to one side of the signal transmitter and the electromagnetic is also electrically connected to the optical code disk and the light emitting diode. When the rotating shaft rotates, it will synchronously drive the reflective strip to rotate, the optical code disk will record the number of revolutions of the rotating shaft, and after the optical code disk detects that the number of revolutions of the rotating shaft reaches the required requirement, it will transmit the signal to the signal transmitter, and the signal will be transmitted to the staff through the signal transmitter.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can be fixed to the feed port of the plate shearing machine by a hydraulic cylinder. When the plate is fed into the feed port of the plate shearing machine, the plate will synchronously drive the driven wheel to rotate. Therefore, when the plate needs to be cut quantitatively, the length of the plate to be cut quantitatively can be converted into the number of revolutions that the driven wheel needs to rotate. When the driven wheel rotates to the set number of revolutions, the signal transmitter will send an electrical signal to remind the staff, so as to achieve the effect of quantitative cutting in this way. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a high-efficiency plate shear blade capable of quantitative cutting;

[0015] Figure 2 It is a schematic diagram of the upward structure of a high-efficiency plate shear blade capable of quantitative cutting;

[0016] Figure 3 It is a three-dimensional schematic diagram of the cooperation between the knife holder and the shear blade structure of a high-efficiency plate shear blade capable of quantitative cutting;

[0017] Figure 4 It is a schematic diagram of the main view of the cooperation between the knife holder and the shear blade structure of a high-efficiency plate shear blade capable of quantitative cutting;

[0018] Figure 5 for Figure 3 AA cross-sectional view of ;

[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of a high-efficiency plate shear blade resetting device capable of quantitative cutting;

[0020] Figure 7A schematic diagram of the internal structure of a reset device for a high-efficiency plate shear blade capable of quantitative cutting (the fixed cylinder is a whole, and a piece is removed to show the internal structure.);

[0021] Figure 8 It is a schematic diagram of the structural coordination of a pressure plate and a rotating assembly of a high-efficiency plate shear blade capable of quantitative cutting;

[0022] Fig. 9 A schematic diagram of the internal structure of a rotating assembly of a high-efficiency plate shear capable of quantitative cutting;

[0023] Fig.10 A schematic diagram of the structure of a measuring component of a high-efficiency plate shear blade capable of quantitative cutting (the shell is a whole, and a piece is removed to show the internal structure.);

[0024] Fig.11 A schematic diagram of the structure coordination of a light emitting diode and an optical code disk of a high-efficiency plate shear capable of quantitative cutting;

[0025] Fig.12 A schematic diagram of the cooperation between a knife holder and a knife changing device of a high-efficiency plate shear capable of quantitative cutting (the knife holder is a whole, and a piece is removed to show the internal structure.);

[0026] Fig.13 for Fig.12 A magnified schematic diagram of point B;

[0027] Fig.14 A schematic diagram of the front view of a knife holder for a high-efficiency plate shearing blade capable of quantitative cutting (the knife holder is a whole, and a piece is removed to show the internal structure.);

[0028] Fig.15 for Fig.14 Schematic diagram of CC cross-section;

[0029] Fig.16 for Fig.14 A magnified schematic diagram of point D;

[0030] In the figure: 1-hydraulic cylinder, 2-tool holder, 21-second screw, 3-tool changing device, 31-hinge, 32-first guide rod, 33-first spring, 4-tool holder, 41-first screw, 5-cutting blade, 6-pressing plate, 7-resetting device, 71-fixed seat, 72-fixed cylinder, 73-sliding rod, 74-second guide rod, 75-second spring, 8-rotating assembly, 81-housing, 82-slide rail, 83-sliding block, 84-rotating shaft, 85-driven wheel, 86-third guide rod, 87-third spring, 9-sensing assembly, 91-reflective strip, 92-optical code disk, 93-light emitting diode, 94-signal transmitter, 95-battery. DETAILED DESCRIPTION

[0031] The following will be combined with the attached embodiment of the present utility model Figure 1-16 , the technical solutions in the embodiments of the utility model are described in detail.

[0032] like Figure 1-2 As shown, a high-efficiency plate shearing blade capable of quantitative cutting comprises a hydraulic cylinder 1 for pushing a knife seat 2 to move up and down and a knife seat 2 for fixing a knife holder 4. There are two groups of hydraulic cylinders 1 and both are vertically arranged above the knife seat 2. The two groups of hydraulic cylinders 1 are arranged above the knife seat 2 according to the length direction of the knife seat 2 and the two groups of hydraulic cylinders 1 are parallel to each other. The output ends of the two groups of hydraulic cylinders 1 are connected to the knife seat 2. Therefore, after the two groups of hydraulic cylinders 1 are fixed on the plate shearing machine, the two groups of hydraulic cylinders 1 can be started to drive the knife seat 2 to move up and down to shear the plate fed into the plate shearing machine. There are also two groups of tool changing devices 3 for replacing the shearing blade 5 and both are vertically arranged inside the knife seat 2. The two groups of tool changing devices 3 are respectively located at both ends of the knife seat 2 and are rotatably connected to the knife holder 4 for fixing the shearing blade 5. Therefore, when the shearing blade 5 is broken by the plate, the tool holder 4 can be driven to rotate by the tool changing device 3 to replace the shearing blade 5 on the knife holder 4.

[0033] like Figure 1-2 As shown, the tool holder 4 is arranged inside the tool holder 2 according to the length direction of the tool holder 2, and the tool holder 4 is located below the tool holder 2, both ends of the tool holder 4 are rotatably connected to the tool changing device 3, and two groups of shear blades 5 for shearing plates are arranged inside the tool holder 4. Both groups of shear blades 5 are vertically arranged inside the tool holder 4 and the cutting edges of the two groups of shear blades 5 are in opposite directions. When the hydraulic cylinder 1 drives the tool holder 2 to move downward to drive the tool holder 4 to use the shear blades 5 to shear the plates, one group of the cutting edges of the two groups of shear blades 5 is facing downward for shearing the plates, and the other group of the cutting edges of the two groups of shear blades 5 is facing upward and will be placed inside the tool holder 2 for storage, a pressing plate 6 for fixing the plates is arranged parallel to one side of the tool holder 2, and both ends of the pressing plate 6 are vertically provided with a resetting device 7 for helping the pressing plate 6 to reset, the sliding rods 73 of the two groups of resetting devices 7 are fixedly connected to the pressing plate 6, and the two groups of resetting devices 7 are fixedly connected to the tool holder 2.

[0034] like Figure 1-2As shown, when the hydraulic cylinder 1 drives the tool holder 2 to move up and down, the tool holder 2 will drive the pressure plate 6 to move up and down synchronously to press the fixed plate. Two sets of rotating components 8 for measuring the length of the plate are also provided at both ends of the pressure plate 6. The rotating components 8 are connected to the pressure plate 6. Therefore, when the pressure plate 6 is driven by the tool holder 2 to move up and down through the reset device 7, the pressure plate 6 will also synchronously drive the rotating components 8 to move up and down, and the two sets of rotating components 8 are respectively located on one side of the reset device 7, and the rotating wheels of the two sets of rotating components 8 are in contact with the upper surface of the sheared plate. Therefore, when the hydraulic rod drives the tool holder 2 to move downward to shear the plate, the driven wheel 85 will move upward into the interior of the rotating component 8 under the extrusion of the pressure plate 6, and when the self-shearing blade 5 is lifted up after shearing the plate, the driven wheel 85 will also always keep in contact with the upper surface of the plate under the action of the rotating component 8 to ensure that the driven wheel 85 can always be in contact with the sheared plate.

[0035] like Figure 3-5 As shown, a plurality of through holes are horizontally arranged on the tool holder 4, and a group of first screws 41 for fixing the shearing blades 5 are arranged inside each through hole. The tool holder 4 is divided into two parts. Therefore, when the two groups of shearing blades 5 inside the tool holder 4 need to be replaced, it is only necessary to unscrew the first screws 41 inside the through holes of the tool holder 4 and pull them out from the tool holder 4, then the tool holder 4 can be opened to take out the two groups of broken shearing blades 5 from the inside of the tool holder 4, and then put the new shearing blades 5 into the inside of the tool holder 4, and then after closing the tool holder 4, the first screws 41 are inserted into the through holes on the tool holder 4 and tightened, and the two groups of shearing blades 5 can be fixed by the tool holder 4. Through holes are also provided at both ends of the tool holder 4, and second screws 21 are arranged inside the through holes at both ends of the tool holder 4.

[0036] like Figure 3-5 As shown, after the shearing blade 5 is fixed to the tool holder 4 and the first screw 41, the hinges 31 of the tool changing device 3 at both ends of the tool holder 2 can be pulled downward from the inside of the tool holder 2, and then the fixed shafts at both ends of the tool holder 4 are respectively inserted into the hinges 31 of the tool changing device at both ends of the tool holder 2, and then the tool holder 4 together with the shearing blade 5 are vertically placed into the inside of the tool holder 2. At this time, the through holes at both ends of the tool holder 4 will be flush with the preset through holes at both ends of the tool holder 2, and then the second screws 21 are inserted from the preset through holes at both ends of the tool holder 2 into the through holes at both ends of the tool holder 4 and tightened. At this time, the second screws 21 can ensure that when the tool holder 2 moves up and down, the tool holder 4 will not shake inside the tool holder 2 or will directly fall from the inside of the tool holder 2, thereby causing an accident.

[0037] like Figure 6-7As shown, the reset device 7 includes a fixed seat 71, a fixed cylinder 72, a sliding rod 73, a second guide rod 74 and a second spring 75. The fixed seat 71 is horizontally arranged on one side of the knife seat 2, one end of the fixed seat 71 is fixedly connected to the knife seat 2, and the fixed cylinder 72 is vertically connected to one end of the fixed seat 71 and the fixed cylinder 72 is connected to the fixed seat 71. Therefore, when the knife seat 2 is driven up and down by the hydraulic cylinder 1, the knife seat 2 will synchronously drive the fixed cylinder 72 to move up and down through the fixed seat 71. The interior of the fixed cylinder 72 is hollow and the sliding rod 73 is vertically slidably connected to the fixed cylinder 72. It is connected to the inside of the fixed cylinder 72, and the bottom end of the sliding rod 73 is connected to the pressure plate 6. Therefore, after the knife holder 2 moves downward until the pressure plate 6 contacts the plate, the knife holder 2 accumulates downward pressure, and under the action of the plate, the sliding rod 73 will be squeezed by the plate into the inside of the fixed cylinder 72 until the shear blade 5 completely cuts the plate. When the shearing of the shear blade 5 is completed, when the knife holder 2 moves upward under the drive of the hydraulic cylinder 1, the moving rod 73 will move downward and slide out of the inside of the fixed cylinder 72 due to its own weight and the pressure plate 6 and under the action of the second spring 75.

[0038] like Figure 6-7 The second guide rod 74 is vertically arranged at the center position of the fixed cylinder 72, and the top end of the second guide rod 74 is fixedly connected to the top of the fixed cylinder 72, and the bottom end of the second guide rod 74 is slidably arranged inside the sliding rod 73, so when the sliding rod 73 is squeezed into the interior of the fixed cylinder 72 by the pressing plate 6, the second guide rod 74 will guide the sliding rod 73 to prevent the sliding rod 73 from being stuck in the interior of the fixed cylinder 72, and the second guide rod 74 is also vertically sleeved with a second spring 75, which is arranged above the sliding rod 73, and the top end of the second spring 75 is connected to the fixed cylinder 72. The bottom end of the second spring 75 is connected to the sliding rod 73, so when the sliding rod 73 is squeezed by the pressure plate 6 into the interior of the fixed cylinder 72, the sliding rod 73 will simultaneously squeeze the second spring 75. After being squeezed, the second spring 75 will be deformed and accumulate force. When the shear blade 5 is lifted up after shearing, the pressure applied by the knife seat 2 to the plate disappears. At this time, the reaction force applied by the plate to the pressure plate 6 and the sliding rod 73 will also disappear. When the sliding rod 73 moves downward, the pressure on the second spring 75 disappears. Therefore, the force accumulated by the second spring 75 when deformed will pop out the sliding rod 73 for reset.

[0039] like Figure 8-9As shown, the rotating assembly 8 includes a shell 81, a slide rail 82, a slider 83, a rotating shaft 84, a driven wheel 85, a third guide rod 86, a third spring 87 and a sensing assembly 9. The shell 81 is hollow inside and the shell 81 is vertically connected to the top of the pressure plate 6. Therefore, when the pressure plate 6 moves up and down, the pressure plate 6 will drive the shell 81 to move up and down synchronously. Slide rails 82 are vertically arranged at both ends of the shell 81, and the slide rails 82 are fixedly connected to the inside of the shell 81. The inside of each slide rail 82 is slidably connected with a slider 83. The rotating shaft 84 is horizontally arranged inside the shell 81, and the two ends of the rotating shaft 84 are respectively rotatably connected to the sliders 83 inside the slide rails 82 at both ends of the shell 81. The driven wheel 85 is horizontally sleeved on the rotating shaft 84 and connected to the rotating shaft 84. Therefore, when the driven wheel 85 is driven by the plate to rotate, the driven wheel 85 will synchronously drive the rotating shaft 84 to rotate. Two third guide rods 86 are vertically and parallelly arranged in the slide rails 82 at both ends of the shell 81.

[0040] like Figure 8-9 As shown, two third guide rods 86 pass through the two ends of the slider 83 and are vertically connected in the slide rail 82, so the slider 83 is slidably connected to the third guide rods 86, each third guide rod 86 is sleeved with a third spring 87 and each third spring 87 is arranged above the slider 83, the sensing component 9 is arranged inside the shell 81 and connected to the top plate inside the shell 81, so the sensing component 9 can measure the length of the plate by sensing the number of revolutions of the rotating shaft 84. When the hydraulic cylinder 1 drives the tool holder 2 to move downward and use the shear blade 5 to shear the plate, the tool holder 2 will drive the pressure plate 6 and the rotating component 8 connected to the pressure plate 6 to press down synchronously through the reset device 7. Because the distance between the pressure plate 6 and the plate is greater than the distance between the shear blade 5 and the plate, when the hydraulic cylinder 1 drives the tool holder 2 to press down and use the shear blade 5 to shear the plate, the pressure plate 6 will contact the plate earlier than the shear blade 5.

[0041] like Figure 8-9 As shown, the driven wheel 85 passes through the pressure plate 6 and is laterally connected to the bottom of the pressure plate 6. When the height of the knife seat 2 is fixed by the hydraulic cylinder 1, the outer surface of the driven wheel 85 will always be in contact with the upper surface of the cut plate. Therefore, when the plate is fed into the plate shearing machine, the plate will drive the driven wheel 85 to rotate synchronously. When the hydraulic cylinder 1 drives the knife seat 2 to use the reset device 7 to drive the pressure plate 6 to press down to fix the plate, in the process of the pressure plate 6 gradually contacting the plate, under the reaction force of the plate, the driven wheel 85 will also be gradually squeezed into the interior of the shell 81 by the plate. In the process of the driven wheel 85 being squeezed into the shell 81, the slider 83, driven by the rotating shaft 84, will move upward synchronously after being guided by the third guide rod 86 inside the slide rail 82. In the process of moving upward, the slider 83 will begin to squeeze the third spring 87 mounted on the third guide rod 86. At this time, the third spring 87 will deform and begin to accumulate force.

[0042] like Figure 8-9 When the cam 73 is in the unlock state, the second spring 75 in the unlocking mechanism 7 will be used to unlock the cam 73 so that the cam 73 can be unlocked.

[0043] like Figure 10-11 As shown, the sensing component 9 includes a reflective strip 91, an optical code disk 82, a light emitting diode 83, a signal transmitter 84 and a battery 85. The reflective strip 91 is laterally connected above the rotating shaft 84. Therefore, when the rotating shaft 84 rotates, the rotating shaft 84 will synchronously drive the reflective strip 91 to rotate. The optical code disk 82 is located above the reflective strip 91 and is connected to the top plate of the shell 81. Therefore, when the rotating shaft 84 rotates, the optical code disk 82 can determine the number of rotations of the rotating shaft 84 by sensing the number of rotations of the light emitting strip. The light emitting diode 83 is arranged inside the optical code disk 82 and is located at one end of the optical code disk 82. The light emitting diode 83 is electrically connected to the battery 85. When the optical code disk 82 cannot sense the reflective strip 91 due to insufficient light inside the shell 81, the light emitting diode 83 can be started to provide fill light for the reflective strip 91. The signal transmitter 84 is located on one side of the optical code disk 82 and is fixedly connected to the top plate of the shell 81, and the signal generator is electrically connected to the optical code disk 82 and the battery 85.

[0044] like Figure 10-11As shown, when the optical code disc 82 senses that the number of revolutions of the reflective strip 91 reaches the set number of revolutions, the optical code disc 82 can transmit a signal to the signal transmitter 84, and the signal transmitter 84 can transmit the signal to the staff, who can then stop filling the sheet shearing machine and start the hydraulic cylinder 1 to shear the sheet through the knife seat 2 using the shear blade 5. The battery 85 is connected to one side of the signal transmitter 84 and the battery 85 is also electrically connected to the optical code disc 82 and the light emitting diode 83. When the power inside the battery 85 is exhausted, the shell 85 can be closed. The top plate of the body 81 is opened to replace the battery 85. During operation, the plate drives the driven wheel 85 to rotate. During the rotation, the driven wheel 85 drives the reflective strip 91 to rotate synchronously through the rotating shaft 84. At this time, the optical code disk 82 can determine the number of revolutions of the driven wheel 85 by sensing the number of revolutions of the reflective strip 91. When shearing the plate, the required length of the plate can be converted into the required number of revolutions of the driven wheel 85. When the optical code disk 82 senses that the reflective strip 91 is driven by the rotating shaft 84 to reach the set number of revolutions, a signal will be sent through the signal transmitter 84.

[0045] like Figure 12-16 As shown, the tool changing device 3 includes a hinge 31, a first guide rod 32 and a first spring 33. The hinge 31 is vertically arranged in the preset slots at both ends of the tool holder 2, so the hinge 31 can be driven by the tool holder 4 to move up and down when necessary. A through hole is opened at the bottom end of the hinge 31, and the fixed shafts at both ends of the tool holder 4 can be inserted into the through hole at the bottom end of the hinge 31, so the tool holder 4 can rotate around the axis of the through hole at the bottom end of the hinge 31. There are two first guide rods 32, both of which are vertically connected to the preset slots at both ends of the tool holder 2, and the two first guide rods 32 pass through the two ends of the hinge 31 respectively and are connected to the inside of the slot, and each first guide rod 32 is sleeved with a first spring 33, and two groups of first springs 33 are arranged below the hinge 31.

[0046] like Figure 12-16As shown, when the shear blade 5 for shearing the plate on the tool holder 4 is broken and needs to be replaced, the second screws 21 at both ends of the tool holder 2 can be unscrewed and then the tool holder 4 can be pulled downward. In the process of moving downward, the tool holder 4 will synchronously drive the hinge 31 to move downward, and in the process of the hinge 31 moving downward, the first spring 33 sleeved on the first guide rod 32 will be squeezed. At this time, the first spring 33 will be deformed and will accumulate force until the tool holder 4 and the shear blade 5 with the cutting edge facing upward vertically arranged on the tool holder 4 are completely pulled out of the tool holder 2, and the tool holder 4 can be rotated 180 degrees. Rotate the shear blade 5 with the cutting edge facing upward and intact downward, and rotate the shear blade 5 with the cutting edge facing downward and broken upward. After the rotation is completed, release the tool holder 4 and allow it to move upward and return to the inside of the tool holder 2. When the tool holder 4 is released, the pressure on the first spring 33 disappears. At this time, the first spring 33 will use the force accumulated during deformation to pop the hinge 31 together with the tool holder 4 upward. After the tool holder 4 is completely returned to the inside of the tool holder 2, the second screws 21 can be put into the through holes at both ends of the tool holder 2 and tightened to fix the position of the tool holder 4 inside the tool holder 2.

[0047] The movement process of this embodiment is as follows: the knife seat 2 and the pressure plate 6 are vertically fixed at the position of the feed port of the plate shearing machine through two groups of hydraulic cylinders 1. At this time, the shearing blade 5 is close to the discharge port of the plate shearing machine, and the pressure plate 6 and the rotating device are located on one side of the shearing blade 5 and first contact the plate, and then the plate can be fed into the plate shearing machine. When feeding the plate, the hydraulic cylinder 1 can be started, and the position of the pressure plate 6 can be adjusted downward through the output end of the hydraulic cylinder 1 to ensure that when the plate is filled into the plate shearing machine, the plate will drive the driven wheel 85 of the rotating component 8 to rotate during the movement. After ensuring that the plate will drive the driven wheel 85 to rotate during the movement, the required number of revolutions of the rotating shaft 84 is set according to the length of the plate to be sheared and the sensing component 9 is started. Then, the plate shearing machine is continued to be filled. After the optical code disk 82 measures the number of revolutions of the rotating shaft 84 through the reflective strip 91 to reach the set number of revolutions, the signal will be transmitted to the staff through the signal transmitter 84.

[0048] At this time, the staff can start the hydraulic cylinder 1 to drive the knife seat 2 and the knife holder 4 to move downward, and cut the plate through the shear blade 5. At the same time, when the light is insufficient, the light-emitting diode 83 can be started to fill the interior of the housing 81 with light. When the knife seat 2 moves downward, it will use the reset device 7 to synchronously drive the pressing plate 6 to move downward until the wear-resistant layer on the surface of the pressing plate 6 contacts and fixes the plate. The knife seat 2 continues to press down until the shear blade 5 completely cuts the plate. When the surface of the pressing plate 6 moves downward until it contacts the surface of the plate, the driven wheel 85 will Under the action of the pressure plate 6, it is squeezed into the interior of the shell 81. At this time, the third spring 87 will deform and accumulate force. After the shearing of the shear blade 5 is completed, the hydraulic cylinder 1 can drive the knife seat 2 and the knife holder 4 to move upward. The second spring 75 will pop the sliding rod 73 and the pressure plate 6 downward. After the knife seat 2 and the knife holder 4 are restored to their original positions, the wear-resistant layer of the pressure plate 6 will also be separated from the surface of the plate. At this time, the driven wheel 85 inside the rotating component 8 will also be popped out by the third spring 87 to ensure that the driven wheel 85 will always be in contact with the surface of the plate.

[0049] The above embodiments are only for illustrating the technical idea of ​​the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An efficient plate shearing blade capable of quantitative cutting, characterized in that: The invention comprises a hydraulic cylinder (1) for pushing a tool holder (2) to move up and down, a tool holder (2) for fixing a tool holder (4), a tool changing device (3) for replacing a shearing blade (5), a tool holder (4) for fixing the shearing blade (5), a shearing blade (5) for shearing a plate, a pressing plate (6) for fixing the plate, a resetting device (7) for helping the pressing plate (6) to reposition, and a rotating assembly (8) for measuring the length of the plate, wherein the hydraulic cylinder (1) has two groups, both of which are vertically arranged above the tool holder (2) and the two groups of hydraulic cylinders (1) are parallel to each other, and the output ends of the two groups of hydraulic cylinders (1) are connected to the tool holder (2), and the tool changing device (3) also has two groups, both of which are arranged inside the tool holder (2), and the two groups of tool changing devices (3) are respectively located at the two ends of the tool holder (2). The tool holder (4) is arranged inside the tool holder (2) along the length direction of the tool holder (2), the tool holder (4) is located below the tool holder (2) and both ends of the tool holder (4) are rotatably connected to the tool changing device (3), two groups of shear blades (5) are arranged inside the tool holder (4), the two groups of shear blades (5) are arranged vertically inside the tool holder (4) and the blade directions of the two groups of shear blades (5) are opposite, a pressure plate (6) is arranged on one side of the tool holder (2), two groups of reset devices (7) are arranged above the pressure plate (6), the reset devices (7) are respectively located at both ends of the pressure plate (6) and the two groups of reset devices (7) are connected to the tool holder (2), and two groups of rotating components (8) are also connected above the pressure plate (6), the two groups of rotating components (8) are respectively arranged at both ends of the pressure plate (6) and The two groups of rotating components (8) are respectively located on one side of the reset device (7). The reset device (7) comprises a fixed seat (71), a fixed cylinder (72), a sliding rod (73), a second guide rod (74) and a second spring (75). The fixed seat (71) is arranged horizontally on one side of the knife seat (2), and the fixed seat (71) is fixedly connected to the knife seat (2). The fixed cylinder (72) is vertically connected to one end of the fixed seat (71). The sliding rod (73) is vertically slidably connected inside the fixed cylinder (72), and the bottom end of the sliding rod (73) is connected to the pressing plate (6). The rotating component (8) is arranged on the pressing plate (6) and is located on one side of the sliding rod (73). A second guide rod (74) is vertically arranged at the center of the fixed cylinder (72), and the second guide rod (74) is vertically connected to the second guide rod (74). The top end of the rod (74) is connected to the fixed cylinder (72), the second spring (75) is sleeved on the second guide rod (74), and the second spring (75) is located above the sliding rod (73), the rotating assembly (8) comprises a housing (81), a slide rail (82), a slider (83), a rotating shaft (84), a driven wheel (85), a third guide rod (86), a third spring (87) and a sensing assembly (9), the housing (81) is provided with slide rails (82) at both ends thereof in a vertical direction, each slide rail (82) is provided with a slider (83) therein, the two ends of the rotating shaft (84) are respectively rotatably connected to the sliders (83) inside the two slide rails (82), the driven wheel (85) is sleeved on the rotating shaft (84) and connected to the rotating shaft (84),Two third guide rods (86) are vertically arranged inside each slide rail (82), and the two third guide rods (86) pass through the two ends of the slider (83) and are connected to the slide rail (82), each third guide rod (86) is sleeved with a third spring (87), and the third spring (87) is arranged above the slider (83), and the induction component (9) is arranged inside the housing (81) and connected to the top plate of the housing (81).

2. The high-efficiency plate shear capable of quantitative cutting according to claim 1, characterized in that: The knife holder (4) is laterally provided with a plurality of through holes, each of which is provided with a group of first screws (41) for fixing the shear blade (5). Through holes are also provided at both ends of the knife seat (2), and second screws (21) for fixing the knife holder (4) are provided inside the through holes at both ends of the knife seat (2).

3. The high-efficiency plate shear capable of quantitative cutting according to claim 1, characterized in that: The tool changing device (3) comprises a hinge (31), a first guide rod (32) and a first spring (33); the hinge (31) is vertically arranged in a preset slot at both ends of the knife seat (2); a through hole is opened at the bottom end of the hinge (31); one end of the knife holder (4) is rotatably connected to the through hole at the bottom end of the hinge (31); two first guide rods (32) are vertically connected to the preset slots at both ends of the knife seat (2); the two first guide rods (32) pass through the two ends of the hinge (31) and are connected to the inside of the slot; each first guide rod (32) is sleeved with a first spring (33), and the two groups of first springs (33) are arranged below the hinge (31).

4. The high-efficiency plate shear capable of quantitative cutting according to claim 1, characterized in that: The lower surface of the pressing plate (6) in contact with the plate is provided with a wear-resistant layer.

5. The high-efficiency plate shear capable of quantitative cutting according to claim 1, characterized in that: The sensing component (9) comprises a reflective strip (91), an optical code disc (92), a light emitting diode (93), a signal transmitter (94) and a battery (95); the reflective strip (91) is laterally connected above the rotating shaft (84); the optical code disc (92) is located above the reflective strip (91) and connected to the top plate of the housing (81); the light emitting diode (93) is arranged inside the optical code disc (92) and located at one end of the optical code disc (92); the signal transmitter (94) is located at one side of the optical code disc (92) and fixedly connected to the top plate of the housing (81); the signal generator is electrically connected to the optical code disc (92) and the battery (95); the battery (95) is fixedly connected to one side of the signal transmitter (94); and the electromagnetic is also electrically connected to the optical code disc (92) and the light emitting diode (93).

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