Shearing device for processing built-in steel sheet of body armor

Abstract

The invention relates to the technical field of steel sheet shearing, in particular to a shearing device for machining a built-in steel sheet of a body armor, and provides the shearing device for machining the built-in steel sheet of the body armor aiming at the problem that an existing device cannot polish the sheared steel sheet, the shearing device for machining the built-in steel sheet of the body armor comprises an operation table, a shearing table is further arranged at the upper end of the operation table, and a frame is installed on the shearing table; a driving plate capable of moving up and down is installed in the frame, a shearing knife matched with the shearing table is arranged at the lower end of the driving plate, a polishing table capable of moving front and back is further arranged at the upper end of the operation table, polishing frames are arranged on the two sides of the polishing table, and two polishing pieces are arranged in each polishing frame; the polishing frame can extend outwards to move to the two ends of the metal sheet, the two polishing pieces are folded inwards to make contact with the metal sheet, and when the polishing table continues to move forwards, the polishing frame and the polishing pieces can make reciprocating left-right vibration movement; and the steel sheet can be polished, and potential safety hazards caused by sharp edges can be eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of steel sheet shearing, and particularly to a shearing device for processing steel sheets built into bulletproof vests. Background Art

[0002] In the field of bulletproof vest production and manufacturing, the built-in steel sheet is a key protective component, and its processing quality directly affects the protective performance of the bulletproof vest. In the prior art, for the processing of the built-in steel sheet of the bulletproof vest, a special shearing device is usually used to cut the steel sheet to a fixed size. Most of these shearing devices drive the blade to shear the steel sheet through a hydraulic drive or a mechanical transmission method, and can achieve relatively precise size control, having certain advantages in improving production efficiency and shearing accuracy.

[0003] The prior art publication number is: CN219004766U, and the name of the utility model is a steel strip conveying and shearing device. Although this device solves the problem of quickly and efficiently leveling the steel strip, making the cut steel sheet more regular; however, after the steel sheet is sheared, sharp burrs and irregular cross-sections will be formed at the cut. These burrs are not only easy to scratch the operator, but may also damage other components of the bulletproof vest during the subsequent assembly process. At the same time, the irregular cross-section will also affect the overall protective performance of the steel sheet. But the existing shearing devices only have the shearing function and cannot perform grinding treatment synchronously after the steel sheet is sheared, resulting in the need to transfer the sheared steel sheet to other grinding equipment for secondary processing. This not only increases the processing procedures and production cycle, but also increases the production cost, and multiple workpiece transfers are also likely to cause surface damage to the steel sheet, reducing the product qualification rate. Therefore, a device that can perform grinding treatment synchronously after the steel sheet is sheared is provided to overcome the deficiencies of the prior art. Summary of the Invention

[0004] In view of the problem that the existing device cannot perform grinding treatment after shearing the steel sheet, the present invention provides a shearing device for processing steel sheets built into bulletproof vests, which can perform grinding treatment on the steel sheet, eliminate the safety hazards brought by sharp edges, avoid damaging the internal materials of the bulletproof vest, and effectively solve the problems mentioned in the above background art.

[0005] The technical solution adopted by the present invention to solve the above problems is: A shearing device for processing steel sheets built into a bulletproof vest, comprising an operating table. At the upper end of the operating table, there are feeding rollers for driving the movement of metal sheets. At the upper end of the operating table, there is also a shearing table. A frame is installed on the shearing table, and a driving plate capable of moving up and down is installed inside the frame. At the lower end of the driving plate, there is a shearing knife that cooperates with the shearing table. When the driving plate moves downward, the metal sheet can be sheared under the mutual cooperation of the shearing knife and the shearing table. At the upper end of the operating table, there is also a grinding table capable of moving back and forth. On both sides of the grinding table, there are grinding frames, and two grinding sheets are provided in each grinding frame. When the grinding table moves forward, the grinding frames can extend outward to the two ends of the metal sheet, and the two grinding sheets close inward to contact the metal sheet. When the grinding table continues to move forward, the grinding frames and the grinding sheets can reciprocate and oscillate left and right.

[0006] A driver is provided at the upper end of the frame, the driving plate is installed on the driver, and the shearing knife is detachably installed at the lower end of the driving plate.

[0007] The grinding table is slidably connected to the operating table. On the front and rear sides of the lower surface of the grinding table, there are brackets slidably connected. The grinding frames are respectively installed on the corresponding brackets. On the inner walls of the left and right ends of the grinding table, there are long sliders capable of moving up and down. On the inner sides of the two long sliders, there are two first connecting rods hinged, and the upper ends of the first connecting rods are hinged to the corresponding brackets.

[0008] On the outer end faces of the long sliders, there are first live pins fixedly connected. On both sides of the upper end of the operating table, there are first guide frames fixedly connected, and first inclined chutes and first flat grooves matching the first live pins are provided on the first guide frames.

[0009] The grinding frames are all slidably connected to the corresponding brackets. A double-headed telescopic plate is slidably connected to the lower surface of the grinding table. The grinding frames are fixedly connected to both ends of the double-headed telescopic plate. A second live pin is fixedly connected to the lower end of the double-headed telescopic plate. A second guide frame is fixedly connected to the upper surface of the operating table, and a second flat groove and a wave groove matching the second live pin are provided on the second guide frame.

[0010] On the inner walls of the upper and lower ends of the grinding frames, there are grinding plates slidably connected, and the grinding sheets are all arranged on the corresponding grinding plates. On the left and right end surfaces of the grinding plates, there are long pins fixedly connected. At the four corners of the grinding table, there are second guide plates, and clamping grooves matching the long pins are provided on the second guide plates.

[0011] A fixing device is also provided on the grinding table. The fixing device includes a U-shaped frame, and a pressing plate is provided inside the U-shaped frame. When the grinding table moves forward, the pressing plate can move downward to squeeze and fix the metal sheet.

[0012] A top plate is slidably connected to the inner wall of the U-shaped frame. Long guide rods are slidably connected to the inner walls at the left and right ends of the top plate. A pressing plate is fixedly connected to the lower ends of the two long guide rods. Second springs that cooperate with the pressing plate are sleeved on the outer surfaces of the long guide rods. Driven straight racks are fixedly connected to the left and right side end faces of the top plate. Driving straight racks are fixedly connected to the upper ends of the long sliders. Straight gears are rotatably connected to both sides of the grinding table. The driving straight racks and the driven straight racks are engaged on both sides of the corresponding straight gears.

[0013] A limiting device is provided on one side of the shearing table. The limiting device includes a bidirectional threaded rod that can rotate. Threaded sliders that are threadedly connected to the left and right ends of the outer surface of the bidirectional threaded rod and are slidably connected to the shearing table are rotatably connected to the upper ends of the threaded sliders with limiting wheels that cooperate with the metal sheet.

[0014] Driving seats are fixedly connected to both side end faces of the driving plate. First sliding pins are provided on the inner walls of the driving seats. First springs that cooperate with the first sliding pins are also provided on the inner walls of the driving seats. First guide plates are fixedly connected to both sides of the grinding table. Vertical grooves, first inclined grooves, and second inclined grooves that cooperate with the first sliding pins are opened on the first guide plates.

[0015] The present invention has the following advantages compared with the prior art: When the present invention is in use, by placing the metal sheet between the two feeding rollers, the rotation of the feeding rollers can drive the metal sheet to reach the designated position. By setting the driving plate and the shearing knife that can move up and down, when the shearing knife moves downward, in cooperation with the shearing table, the metal sheet can be sheared to cut out the built-in steel sheet required for making bulletproof vests. After the metal sheet is sheared, the sheared metal sheet will stay on the grinding table. By controlling the forward movement of the grinding table, the grinding table, the metal sheet, the grinding frame, etc. can move forward synchronously away from the shearing table, preventing movement interference with the shearing table during grinding. When the grinding table moves forward, the grinding frame can extend outward to move to both ends of the metal sheet, that is, to the shearing position. The two grinding sheets can move inward to close and contact the metal sheet, that is, contact the shearing position. When the grinding table continues to move forward, the grinding frame and the grinding sheets can reciprocate and oscillate left and right. At this time, the grinding sheets can grind both ends of the sheared metal sheet. After grinding the steel sheet, the safety hazards brought by sharp edges can be eliminated, avoiding damage to the internal materials of the bulletproof vest; reducing the process turnover time and cost, realizing integrated shearing and grinding operations; improving the surface accuracy and anti-corrosion performance, enhancing the coating adhesion, and ensuring the assembly accuracy; also reducing the rejection rate and dust pollution, achieving cost reduction, efficiency increase and clean production. Description of the Drawings

[0016] Figure 1 It is the first axonometric drawing of a shearing device for processing the built-in steel sheet of a bulletproof vest according to the present invention.

[0017] Figure 2The second axonometric drawing of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0018] Figure 3 The schematic diagram of the installation of the limiting wheel of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0019] Figure 4 The schematic diagram of the installation of the shearing blade of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0020] Figure 5 The schematic diagram of the installation of the first guide plate of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0021] Figure 6 The sectional view of the driving seat of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0022] Figure 7 The schematic diagram of the structure of the first guide plate of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0023] Figure 8 The schematic diagram of the installation of the grinding table of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0024] Figure 9 The schematic diagram of the installation of the bracket of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0025] Figure 10 The schematic diagram of the installation of the double-headed telescopic plate of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0026] Figure 11 The schematic diagram of the installation of the long pin of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0027] Figure 12 The schematic diagram of the installation of the grinding plate of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0028] Figure 13 The schematic diagram of the installation of the second guide frame of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0029] Figure 14 The schematic diagram of the installation of the spur gear of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0030] Figure 15 The sectional view of the U-shaped frame of a shearing device for processing the built-in steel sheets of a bulletproof vest according to the present invention.

[0031] Reference numerals in the figure: 1 - operating table, 2 - blanking hopper, 3 - feeding roller, 4 - metal sheet, 5 - shearing table, 6 - bidirectional threaded rod, 7 - threaded slider, 8 - limiting wheel, 9 - first handle, 10 - frame, 11 - driver, 12 - driving plate, 13 - shearing knife, 14 - driving seat, 15 - first spring, 16 - first sliding pin, 17 - first guide plate, 18 - vertical groove, 19 - first inclined groove, 20 - second inclined groove, 21 - first cushion block, 22 - second cushion block, 23 - grinding table, 24 - bracket, 25 - first connecting rod, 26 - long slider, 27 - first movable pin, 28 - grinding frame, 29 - grinding plate, 30 - short guide rod, 31 - grinding sheet, 32 - second guide plate, 33 - long pin, 35 - clamping groove, 36 - first guide frame, 37 - U-shaped frame, 38 - first inclined sliding groove, 39 - first flat groove, 40 - double-headed telescopic plate, 41 - second movable pin, 42 - second guide frame, 43 - second flat groove, 44 - wave groove, 45 - active straight rack, 46 - spur gear, 47 - driven straight rack, 48 - top plate, 49 - pressing plate, 50 - long guide rod, 51 - second spring. Specific implementation mode

[0032] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0033] As Figures 1-15 shown, the present invention provides a shearing device for processing steel sheets built into bulletproof vests, including an operating table 1. A feeding roller 3 for driving the movement of the metal sheet 4 is provided at the upper end of the operating table 1. A shearing table 5 is also provided at the upper end of the operating table 1. A frame 10 is installed on the shearing table 5. A driving plate 12 capable of moving up and down is installed inside the frame 10. A shearing knife 13 cooperating with the shearing table 5 is provided at the lower end of the driving plate 12. When the driving plate 12 moves downward, the metal sheet 4 can be sheared under the mutual cooperation of the shearing knife 13 and the shearing table 5. A grinding table 23 capable of moving back and forth is also provided at the upper end of the operating table 1. Grinding frames 28 are provided on both sides of the grinding table 23. Two grinding sheets 31 are provided inside each grinding frame 28. When the grinding table 23 moves forward, the grinding frames 28 can extend outward to both ends of the metal sheet 4, and the two grinding sheets 31 close inward to contact the metal sheet 4. When the grinding table 23 continues to move forward, the grinding frames 28 and the grinding sheets 31 can reciprocate and oscillate left and right.

[0034] As Figures 1-12As shown in the figure, multiple support legs are provided at the bottom of the operating table 1. The operating table 1 is used to support the entire device. The operating table 1 is a prior art and will not be elaborated here. Two feeding rollers 3 are provided and can rotate. They are arranged at the rear end of the operating table 1. By placing the metal sheet 4 between the two feeding rollers 3, the feeding rollers 3 can drive the metal sheet 4 to the designated position when rotating. The feeding rollers 3 are a prior art and will not be elaborated here. The shearing table 5 is fixed on the operating table 1. The frame 10 is used to install the driving plate 12. The frame 10 is fixed on the shearing table 5 or the operating table 1. By setting the driving plate 12 and the shearing knife 13 that can move up and down, when the shearing knife 13 moves downward, in cooperation with the shearing table 5, the metal sheet 4 can be sheared to cut out the internal steel sheets required for making bulletproof vests. The grinding frame 28 is used to support the grinding sheets 31. Two grinding sheets 31 are arranged in each grinding frame 28. The grinding sheets 31 are arranged up and down in the grinding frame 28. After the metal sheet 4 is sheared, the sheared metal sheet 4 will stay on the grinding table 23. By controlling the forward movement of the grinding table 23, the grinding table 23, the metal sheet 4, the grinding frame 28, etc. can move forward synchronously away from the shearing table 5, which can prevent movement interference with the shearing table 5 during grinding. When the grinding table 23 moves forward, the grinding frame 28 can extend outward to move to both ends of the metal sheet 4, that is, move to the shearing position. The two grinding sheets 31 can move inward to close and contact the metal sheet 4, that is, contact the shearing position. When the grinding table 23 continues to move forward, the grinding frame 28 and the grinding sheets 31 can reciprocate and oscillate left and right. At this time, the grinding sheets 31 can grind both ends of the sheared metal sheet 4. After grinding the steel sheets, the safety hazards brought by sharp edges can be eliminated, and the internal materials of the bulletproof vest can be prevented from being damaged. It can reduce the process turnover time and cost, realize the integrated operation of shearing and grinding. It can improve the surface accuracy and anti-corrosion performance, enhance the coating adhesion, and ensure the assembly accuracy. It can also reduce the rejection rate and dust pollution, and achieve cost reduction, efficiency increase and clean production.

[0035] A driver 11 is provided at the upper end of the frame 10. The driving plate 12 is installed on the driver 11. The shearing knife 13 can be detachably installed at the lower end of the driving plate 12.

[0036] As Figure 4 shown in the figure, the driver 11 is fixed on the frame 10 by bolts. A driving telescopic rod is provided inside the driver 11. The driving plate 12 is fixedly connected to the telescopic end of the driving telescopic rod, so as to control the up and down movement of the driving plate 12. The driver 11 and the driving telescopic rod are both prior arts and will not be elaborated here. The shearing knife 13 is fixed on the driving plate 12 by bolts, so that the shearing knife 13 can be detached, which is convenient for regular maintenance, replacement, etc.

[0037] The grinding table 23 is slidably connected to the operation table 1. Brackets 24 are slidably connected to both the front and rear sides of the lower surface of the grinding table 23. The grinding frames 28 are respectively installed on the corresponding brackets 24. Long sliders 26 capable of moving up and down are slidably connected to the inner walls at the left and right ends of the grinding table 23. Two first connecting rods 25 are hinged to the inner sides of the two long sliders 26, and the upper ends of the first connecting rods 25 are hinged to the corresponding brackets 24.

[0038] As Figures 8-10 shown, the grinding table 23 can slide back and forth on the upper surface of the operation table 1, the brackets 24 can slide back and forth on the lower surface of the grinding table 23, and the grinding frames 28 are installed on the brackets 24. When the brackets 24 move, they can drive the two grinding frames 28 to move outward or inward; the long sliders 26 can slide up and down on the inner walls on both sides of the grinding table 23. The installation and shape of the long sliders 26, the first connecting rods 25, and the brackets 24 are as Figure 10 shown. When the long sliders 26 move upward, under the hinge action of the first connecting rods 25, they can drive the two brackets 24 and the grinding frames 28 to move outward. Similarly, when the long sliders 26 move downward, they can drive the brackets 24 and the grinding frames 28 to move inward.

[0039] First live pins 27 are fixedly connected to the outer end faces of the long sliders 26. First guide frames 36 are fixedly connected to both sides of the upper end of the operation table 1. First inclined chutes 38 and first flat grooves 39 that cooperate with the first live pins 27 are provided on the first guide frames 36.

[0040] As Figure 13As shown, when the grinding table 23 moves from back to front, the first movable pin 27 can engage with the first inclined chute 38. The forward movement of the grinding table 23 can drive the long slider 26, the first movable pin 27, etc. to move forward synchronously. When the first movable pin 27 moves forward, under the engagement with the first inclined chute 38, the first movable pin 27 can move upward while moving forward, that is, the corresponding long slider 26 moves upward while moving forward, that is, the corresponding bracket 24 and grinding frame 28 will extend and expand outward while following the grinding table 23 to move forward. When the grinding table 23 moves forward to make the first movable pin 27 enter the inner wall of the first flat groove 39, at this time, the first movable pin 27 and the long slider 26 move upward to the topmost position, that is, they will only move horizontally forward with the grinding table 23 and no longer move upward, that is, the corresponding grinding frame 28 moves outward to the topmost designated position and then stops, that is, at this time, the grinding frame 28 will only move forward with the grinding table 23 and no longer move outward, and under the engagement of the first movable pin 27 and the first flat groove 39, the grinding frame 28 is in the outermost stable state. At this time, it is convenient for the grinding frame 28 and the grinding sheet 31 to perform reciprocating left and right oscillating movements, that is, to grind the metal sheet 4; when the grinding table 23 moves backward and resets from front to back, the corresponding first movable pin 27 can be reset to the initial position under the engagement of the first flat groove 39 and the first inclined chute 38, that is, the corresponding bracket 24 and grinding frame 28 can move inward to the initial position.

[0041] The grinding frames 28 are all slidably connected to the corresponding brackets 24. The lower end surface of the grinding table 23 is slidably connected with a double-headed telescopic plate 40. The grinding frames 28 are fixedly connected to both ends of the double-headed telescopic plate 40. The lower end of the double-headed telescopic plate 40 is fixedly connected with a second movable pin 41. The upper end surface of the operating table 1 is fixedly connected with a second guide frame 42. The second guide frame 42 is provided with a second flat groove 43 and a wavy groove 44 that cooperate with the second movable pin 41.

[0042] As Figure 10 、 Figure 13 shown, the grinding frame 28 can slide left and right on the bracket 24, that is, when the bracket 24 moves back and forth, it can drive the grinding frame 28 to move back and forth, and the left and right movement of the grinding frame 28 does not affect its connection with the bracket 24; the double-headed telescopic plate 40 can be slidably connected to the lower end surface of the grinding table 23, and both ends of the double-headed telescopic plate 40 can be telescoped back and forth, that is, when the grinding frame 28 follows the bracket 24 to move inward or outward, the double-headed telescopic plate 40 can contract or extend outward, and when the double-headed telescopic plate 40 moves left and right, it can drive the grinding frame 28 to move left and right. The double-headed telescopic plate 40 is a prior art and will not be elaborated here; the installation and shape of the second guide frame 42, the second movable pin 41, the second flat groove 43 and the wavy groove 44 are as Figure 13As shown, when the grinding table 23 moves from back to front, it can drive the double-headed telescopic plate 40, the second live pin 41, etc. to move forward synchronously. When the second live pin 41 moves forward, under the engagement with the second flat groove 43, the corresponding double-headed telescopic plate 40 will not move left and right, that is, it will move forward synchronously with the grinding table 23. When the grinding table 23, the double-headed telescopic plate 40, etc. move forward to make the second live pin 41 move forward into the inner wall of the wave groove 44, the second live pin 41 can move left and right reciprocally while moving forward, that is, the corresponding double-headed telescopic plate 40, the grinding frame 28, etc. will move left and right reciprocally on the grinding table 23 while following the grinding table 23 forward, so that the grinding sheet 31 processes the metal sheet 4. When the grinding table 23 moves back to the initial position from front to back, the corresponding double-headed telescopic plate 40 and the second live pin 41 can be reset to the initial position; the second flat groove 43 is correspondingly arranged with the first inclined chute 38, and the wave groove 44 is correspondingly arranged with the first flat groove 39. Under the mutual cooperation of the first live pin 27 and the first guide frame 36 and the second live pin 41 and the second guide frame 42, when the grinding table 23 moves from back to front, the grinding frame 28 can be first moved outward. After the grinding frame 28 moves outward to a specified position, the grinding sheet 31 contacts both ends of the metal sheet 4, and then the grinding frame 28 moves left and right reciprocally to process both ends of the metal sheet 4 with the grinding sheet 31.

[0043] Both the upper and lower inner walls of the grinding frame 28 are slidably connected with grinding plates 29, the grinding sheets 31 are all arranged on the corresponding grinding plates 29, long pins 33 are fixedly connected to the left and right ends of the surface of the grinding plates 29, and second guide plates 32 are provided at the four corners of the grinding table 23, and clamping grooves 35 matching the long pins 33 are opened on the second guide plates 32.

[0044] As Figures 11-12 shown, a plurality of short guide rods 30 are fixedly connected to both the upper and lower inner walls of the grinding frame 28, the grinding plates 29 are sleeved on the outer surfaces of the short guide rods 30, and the limit is such that the grinding plates 29 can only move up and down on the inner wall of the grinding frame 28, which is equivalent to the grinding plates 29 being slidably connected to the inner wall of the grinding frame 28; the second guide plates 32 are fixed on the grinding table 23; the grinding sheets 31 are fixedly adhered to the grinding plates 29, which is convenient for regularly replacing the grinding sheets 31; the installation and shape of the second guide plates 32, the long pins 33, the transverse grooves, and the short inclined grooves are as Figure 11As shown, when the grinding frame 28, the grinding plate 29, the grinding sheet 31, the long pin 33, etc. move from the inside to the outside, under the engagement of the long pin 33 with the clamping groove 35, the two long pins 33, the grinding plate 29, and the grinding sheet 31 can move inward. When the grinding frame 28, the grinding sheet 31, etc. move to the top position on the outside, the corresponding long pin 33, the grinding plate 29, and the grinding sheet 31 can move to the top position on the inside. At this time, the two grinding sheets 31 can squeeze and contact both ends of the metal sheet 4. When the grinding frame 28 oscillates back and forth left and right, the grinding sheet 31 can also oscillate back and forth left and right, so as to grind both ends of the metal sheet 4; when the two grinding frames 28 move outward, the corresponding long pin 33 can move outward under the engagement of the clamping groove 35, that is, the two grinding sheets 31 move outward and no longer contact the metal sheet 4; the long pin 33 can not only engage with the inner wall of the clamping groove 35, but also slide left and right on the inner wall of the clamping groove 35. That is, when the grinding frame 28 moves back and forth left and right, the long pin 33 can move left and right on the inner wall of the clamping groove 35 and always remain in an engaged state with the clamping groove 35.

[0045] A fixing device is further provided on the grinding table 23. The fixing device includes a U-shaped frame 37. A pressing plate 49 is arranged inside the U-shaped frame 37. When the grinding table 23 moves forward, the pressing plate 49 can move downward to squeeze and fix the metal sheet 4.

[0046] As Figure 14 shown, the U-shaped frame 37 is used to support and install other components such as the pressing plate 49. Through the arranged pressing plate 49, when the grinding table 23 moves forward, the pressing plate 49 can move downward to squeeze and fix the metal sheet 4 on the upper end of the grinding table 23, and can prevent the metal sheet 4 from moving during grinding.

[0047] A top plate 48 is slidably connected to the inner wall of the U-shaped frame 37. Long guide rods 50 are slidably connected to the inner walls of the left and right ends of the top plate 48. The pressing plate 49 is fixedly connected to the lower ends of the two long guide rods 50. Second springs 51 that cooperate with the pressing plate 49 are sleeved on the outer surfaces of the long guide rods 50; driven straight racks 47 are fixedly connected to the left and right side end faces of the top plate 48. Driving straight racks 45 are fixedly connected to the upper ends of the long sliders 26. Straight gears 46 are rotatably connected to both sides of the grinding table 23. The driving straight racks 45 and the driven straight racks 47 are both engaged on both sides of the corresponding straight gears 46.

[0048] As Figures 14-15 shown, the top plate 48 can be slidably connected to the inner wall of the U-shaped frame 37 up and down. The long guide rods 50 can be slidably connected to the inner wall of the top plate 48 up and down. Anti-slip pads are fixedly connected to the upper end surfaces of the long guide rods 50, which can prevent the long guide rods 50 from detaching from the top plate 48. The second spring 51 always has a downward driving force on the pressing plate 49, so that the pressing plate 49 is in the lowest position of the top plate 48 under normal conditions; the installation and shape of the long slider 26, the driving straight rack 45, the driven straight rack 47, and the straight gear 46 are as Figure 14As shown, when the long slider 26 moves upward, it can drive the driving straight rack 45 to move upward. When the driving straight rack 45 moves upward, under the engagement with the spur gear 46, it can drive the driven straight rack 47, the top plate 48, the pressing plate 49, etc. to move downward. That is, the pressing plate 49 moves downward to press the metal sheet 4. Through the arranged second spring 51, it can play an effective protection when the pressing plate 49 presses the metal sheet 4, preventing the metal sheet 4 from being damaged by overloading extrusion. After shearing the metal sheet 4, when the grinding table 23 moves forward, it can drive the sheared metal sheet 4 to move forward synchronously. And under the engagement of the first live pin 27 and the first guide frame 36, it can make the grinding frame 28 and the grinding sheet 31 move outward. At the same time, the pressing plate 49 moves downward to press and fix the metal sheet 4. When the grinding sheet 31 moves outward, under the engagement of the long pin 33 and the clamping groove 35, the two grinding sheets 31 can be closed and clamped, that is, the two ends of the metal sheet 4 are squeezed and contacted. When the grinding table 23 continues to move forward, under the engagement of the second live pin 41 and the second guide frame 42, it can make the grinding frame 28 and the grinding sheet 31 move oscillatingly left and right, so as to grind the two ends of the metal sheet 4; As Figure 1 shown, a feeding hopper 2 is also provided on the operating table 1. After grinding the metal sheet 4, control the feeding roller 3 to rotate, that is, drive the next metal sheet 4 to be sheared to move forward, and can push the ground metal sheet 4 at the upper end of the grinding table 23 forward, and it will fall into the designated position under the guidance of the feeding hopper 2.

[0049] A limiting device is provided on one side of the shearing table 5. The limiting device includes a bidirectional threaded rod 6 that can rotate. Threaded sliders 7 that are threadedly connected to the left and right ends of the outer surface of the bidirectional threaded rod 6 and are slidably connected to the shearing table 5 are provided. Limiting wheels 8 that are rotationally connected to the upper ends of the threaded sliders 7 and are matched with the metal sheet 4 are provided.

[0050] As Figure 3 shown, support seats fixedly connected to the shearing table 5 are rotationally connected to the left and right ends of the outer surface of the bidirectional threaded rod 6, and the limiting bidirectional threaded rod 6 can only rotate on the shearing table 5; First handles 9 are fixedly connected to the left and right ends of the surface of the bidirectional threaded rod 6. When driving the first handle 9, the bidirectional threaded rod 6 can be driven to rotate; The threaded sliders 7 can be slidably connected to the end surface on one side of the shearing table 5. Two threads with the same pitch and different helix directions are provided at the left and right ends of the outer surface of the bidirectional threaded rod 6. When the bidirectional threaded rod 6 rotates, it can drive the threaded sliders 7 and the limiting wheels 8 to move inward or outward, and the position between the two limiting wheels 8 can be adjusted according to the metal sheet 4. Through the arranged two limiting wheels 8, the metal sheet 4 can be limited to move only along the specified path, improving the shearing accuracy.

[0051] Both side end faces of the driving board 12 are fixedly connected with driving seats 14. First sliding pins 16 are arranged on the inner walls of the driving seats 14, and first springs 15 matched with the first sliding pins 16 are also arranged on the inner walls of the driving seats 14; both sides of the grinding table 23 are fixedly connected with first guiding plates 17, and vertical grooves 18, first inclined grooves 19 and second inclined grooves 20 matched with the first sliding pins 16 are formed in the first guiding plates 17.

[0052] As Figures 5-7 shown, when the driving board 12 moves up and down, it can drive the driving seats 14 to move up and down; the first guiding plates 17 are fixedly connected to the grinding table 23 through connecting frames. When the first guiding plates 17 move back and forth, they can drive the grinding table 23 to move back and forth; the installation and shape of the driving seats 14, the first sliding pins 16 and the first springs 15 are as Figure 6 shown. The first sliding pins 16 can slide left and right on the inner walls of the driving seats 14, and the first springs 15 always have an outward elastic force on the first sliding pins 16, so that the first sliding pins 16 are in the outermost end in the normal state; the installation and shape of the first guiding plates 17, the vertical grooves 18, the first inclined grooves 19 and the second inclined grooves 20 are as Figure 6 and Figure 7 shown. When the driving board 12 and the driving seats 14 move from top to bottom, that is, when the first sliding pins 16 move downward on the inner walls of the vertical grooves 18, at this time the first guiding plates 17 do not move, that is, at this time the shearing knives 13 shear the metal sheets 4. After the shearing is completed, when the driving board 12 and the driving seats 14 move from bottom to top, the first sliding pins 16 will engage with the first inclined grooves 19. Under the engagement of the first inclined grooves 19, the first guiding plates 17 and the grinding table 23 can be driven to move forward. When the first sliding pins 16 move upward to enter the inner walls of the second inclined grooves 20, at this time the first guiding plates 17 and the grinding table 23 move forward to the top position, that is, the corresponding driving board 12, driving seats 14, first sliding pins 16, etc. continue to move upward, which can make the first guiding plates 17 and the grinding table 23 move backward to reset. When the driving board 12, driving seats 14 and first sliding pins 16 move upward to the top position, at this time the first sliding pins 16 enter the inner walls of the vertical grooves 18, and at this time the first guiding plates 17 and the grinding table 23 can move backward to reset to the initial position; that is, through the arranged first sliding pins 16, first guiding plates 17, etc., the grinding table 23 can be driven to move back and forth, which can cooperate with the shearing knives 13 and share a driving force, saving costs. The driving telescopic rods can also be separately arranged to drive the grinding table 23 to move back and forth, but the cost is relatively high, and it can be selected according to requirements; as Figure 6 and Figure 7As shown, a first cushion block 21 is provided at the bottom of the vertical groove 18, and a second cushion block 22 is provided at the bottom of the second inclined groove 20. With the cooperation of the first cushion block 21, the second cushion block 22 and the first sliding pin 16, the first sliding pin 16 can only move along a specified sequential path, that is, the first sliding pin 16 moves in the order of the vertical groove 18, the first inclined groove 19, and the second inclined groove 20; inclined surfaces and straight surfaces are respectively formed on the first cushion block 21 and the second cushion block 22. When the first sliding pin 16 moves downward along the inner wall of the vertical groove 18, it can meet the inclined surface of the first cushion block 21. Under the contact and engagement of the inclined surface of the first cushion block 21, a part of the first sliding pin 16 can enter and contract into the inner wall of the driving seat 14. When the first sliding pin 16 moves downward to disengage from the first cushion block 21, that is, when the first sliding pin 16 enters the inner wall of the first inclined groove 19, at this time, the first sliding pin 16 can pop out under the elastic force of the first spring 15, that is, extend out again. When the first sliding pin 16 moves upward, blocked by the straight surface of the first cushion block 21, the first sliding pin 16 can move upward along the inner wall of the first inclined groove 19. That is, when the first sliding pin 16 moves upward from bottom to top, the first sliding pin 16 cannot enter the inner wall of the vertical groove 18 and can only move upward along the inner wall of the first inclined groove 19; similarly, when the first sliding pin 16 moves upward from the inner wall of the second inclined groove 20, it can meet the second cushion block 22. Under the contact and engagement of the inclined surface of the second gasket, a part of the first sliding pin 16 can enter and contract into the inner wall of the driving seat 14. When the first sliding pin 16 moves upward to the top, that is, when it enters the inner wall of the vertical groove 18, the first sliding pin 16 can disengage from the second cushion block 22. At this time, the first sliding pin 16 can extend out again under the elastic force of the first spring 15. When the first sliding pin 16 moves downward again, blocked by the straight surface of the second cushion block 22, the first sliding pin 16 can only move downward along the inner wall of the vertical groove 18 and will not enter the inner wall of the second inclined groove 20. Therefore, by providing the first cushion block 21 and the second cushion block 22, the first sliding pin 16 can only move in the order of the vertical groove 18, the first inclined groove 19, and the second inclined groove 20.

[0053] When the present invention is in use, by placing the metal sheet 4 between two feeding rollers 3, the rotation of the feeding rollers 3 can drive the metal sheet 4 to reach the specified position. By setting the driving plate 12 and the shearing knife 13 that can move up and down, when the shearing knife 13 moves downward, in cooperation with the shearing table 5, the metal sheet 4 can be sheared to cut out the built-in steel sheet required for making bulletproof vests; after the metal sheet 4 is sheared, the sheared metal sheet 4 will stay on the grinding table 23. By controlling the forward movement of the grinding table 23, the grinding table 23, the metal sheet 4, the grinding frame 28, etc. can move forward synchronously away from the shearing table 5, preventing movement interference with the shearing table 5 during grinding. When the grinding table 23 moves forward, the grinding frame 28 can extend outward and move to both ends of the metal sheet 4, that is, move to the shearing position. The two grinding pieces 31 can move inward and close together to contact the metal sheet 4, that is, contact the shearing position. When the grinding table 23 continues to move forward, the grinding frame 28 and the grinding pieces 31 can reciprocate and oscillate left and right. At this time, the grinding pieces 31 can grind both ends of the sheared metal sheet 4. After grinding the steel sheet, the safety hazards brought by sharp edges can be eliminated, avoiding damage to the internal materials of the bulletproof vest; reducing the process turnover time and cost, realizing the integrated operation of shearing and grinding; improving the surface accuracy and anti-corrosion performance, enhancing the coating adhesion, and ensuring the assembly accuracy; also being able to reduce the scrap rate and dust pollution, achieving cost reduction, efficiency increase and clean production.

Claims

1. A shearing device for processing steel sheets built into a bulletproof vest, comprising an operating table (1), characterized in that: The upper end of the operation table (1) is provided with a feeding roller (3) for driving the movement of the metal sheet (4). The upper end of the operation table (1) is also provided with a shearing table (5). A frame (10) is installed on the shearing table (5). A driving plate (12) capable of moving up and down is installed inside the frame (10). A shearing knife (13) matching with the shearing table (5) is provided at the lower end of the driving plate (12). When the driving plate (12) moves downward, the metal sheet (4) can be sheared under the mutual cooperation of the shearing knife (13) and the shearing table (5). The upper end of the operation table (1) is also provided with a grinding table (23) capable of moving back and forth. Grinding frames (28) are provided on both sides of the grinding table (23). Two grinding sheets (31) are provided inside each grinding frame (28). When the grinding table (23) moves forward, the grinding frames (28) can extend outward to both ends of the metal sheet (4), and the two grinding sheets (31) close inward to contact the metal sheet (4). When the grinding table (23) continues to move forward, the grinding frames (28) and the grinding sheets (31) can reciprocate and oscillate left and right.

2. The shearing device for processing the steel sheets inside a bulletproof vest according to claim 1, characterized in that: A driver (11) is provided at the upper end of the frame (10). The driving plate (12) is installed on the driver (11). The shearing knife (13) is detachably installed at the lower end of the driving plate (12).

3. The shearing device for processing the steel sheets inside the bulletproof vest according to claim 1, characterized in that: The grinding table (23) is slidably connected to the operation table (1). Brackets (24) are slidably connected to the front and rear sides of the lower surface of the grinding table (23). The corresponding grinding frames (28) are respectively installed on the brackets (24). Long sliders (26) capable of moving up and down are slidably connected to the inner walls of the left and right ends of the grinding table (23). Two first connecting rods (25) are hinged to the inner sides of the two long sliders (26). The upper ends of the first connecting rods (25) are respectively hinged to the corresponding brackets (24).

4. The shearing device for processing the built-in steel sheets of a bulletproof vest according to claim 3, characterized in that: First live pins (27) are fixedly connected to the outer end faces of the long sliders (26). First guiding frames (36) are fixedly connected to both sides of the upper end of the operation table (1). First inclined chutes (38) and first flat grooves (39) matching with the first live pins (27) are formed on the first guiding frames (36).

5. The shearing device for processing the steel sheets built in the bulletproof vest according to claim 3, characterized in that: The grinding frames (28) are respectively slidably connected to the corresponding brackets (24). A double-headed telescopic plate (40) is slidably connected to the lower surface of the grinding table (23). The grinding frames (28) are fixedly connected to both ends of the double-headed telescopic plate (40). A second live pin (41) is fixedly connected to the lower end of the double-headed telescopic plate (40). A second guiding frame (42) is fixedly connected to the upper surface of the operation table (1). A second flat groove (43) and a wavy groove (44) matching with the second live pin (41) are formed on the second guiding frame (42).

6. The shearing device for processing the steel sheets inside the bulletproof vest according to claim 1, characterized in that: Grinding plates (29) are slidably connected to the upper and lower inner walls of the grinding frames (28). The grinding sheets (31) are respectively arranged on the corresponding grinding plates (29). Long pins (33) are fixedly connected to the left and right end surfaces of the grinding plates (29). Second guiding plates (32) are provided at the four corners of the grinding table (23). Clamping grooves (35) matching with the long pins (33) are formed on the second guiding plates (32).

7. The shearing device for processing the steel sheets inside a bulletproof vest according to claim 1, characterized in that: A fixing device is further provided on the grinding table (23). The fixing device includes a U-shaped frame (37). A pressing plate (49) is arranged inside the U-shaped frame (37). When the grinding table (23) moves forward, the pressing plate (49) can move downward to squeeze and fix the metal sheet (4).

8. The shearing device for processing the built-in steel sheets of a bulletproof vest according to claim 7, characterized in that: A top plate (48) is slidably connected to the inner wall of the U-shaped frame (37). Long guide rods (50) are slidably connected to the inner walls of the left and right ends of the top plate (48). The pressing plate (49) is fixedly connected to the lower ends of the two long guide rods (50). Second springs (51) that cooperate with the pressing plate (49) are sleeved on the outer surfaces of the long guide rods (50). Driven straight racks (47) are fixedly connected to the left and right side end faces of the top plate (48). Driving straight racks (45) are fixedly connected to the upper ends of the long sliders (26). Straight gears (46) are rotatably connected to both sides of the grinding table (23). The driving straight racks (45) and the driven straight racks (47) are both engaged on both sides of the corresponding straight gears (46).

9. The shearing device for processing the built-in steel sheets of a bulletproof vest according to claim 1, characterized in that: A limiting device is provided on one side of the shearing table (5). The limiting device includes a bidirectional threaded rod (6) that can rotate. Threaded sliders (7) that are slidably connected to the shearing table (5) are threadedly connected to both the left and right ends of the outer surface of the bidirectional threaded rod (6). Limiting wheels (8) that cooperate with the metal sheet (4) are rotatably connected to the upper ends of the threaded sliders (7).

10. The shearing device for processing the steel sheets built in the bulletproof vest according to claim 1, characterized in that: Driving seats (14) are fixedly connected to both side end faces of the driving plate (12). First sliding pins (16) are arranged inside the driving seats (14). First springs (15) that cooperate with the first sliding pins (16) are also arranged inside the driving seats (14). First guide plates (17) are fixedly connected to both sides of the grinding table (23). Vertical grooves (18), first inclined grooves (19), and second inclined grooves (20) that cooperate with the first sliding pins (16) are formed on the first guide plates (17).

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