A shearing device for processing steel sheets built into bulletproof vests

Abstract

The invention relates to the technical field of steel sheet shearing, in particular to a shearing device for processing steel sheets built into bulletproof vests. In view of the fact that existing devices cannot perform grinding processing on steel sheets after shearing, a shearing device for processing steel sheets built into bulletproof vests is provided. The device comprises an operating table, a shearing table is further provided at the upper end of the operating table, a frame is mounted on the shearing table, a driving plate capable of moving up and down is mounted in the frame, a shearing knife matched with the shearing table is disposed at the lower end of the driving plate, a grinding table capable of moving forward and backward is further provided at the upper end of the operating table, grinding frames are provided on both sides of the grinding table, two grinding plates are disposed in the grinding frames, when the grinding table moves forward, the grinding frames can be extended outwards to move to the two ends of the metal sheet, the two grinding plates are closed inwards and contact the metal sheet, when the grinding table continues to move forward, the grinding frames and the grinding plates can be made to oscillate back and forth, the steel sheet can be grinded, and the safety hazards caused by sharp edges can be eliminated.

Description

Technical Field

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

[0002] In the production and manufacturing of bulletproof vests, the inner steel sheet is a key protective component, and its processing quality directly affects the protective performance of the vest. Existing technologies typically use specialized shearing devices to cut the steel sheets to specific lengths. These shearing devices typically use hydraulic or mechanical drive to drive the blades to shear the steel sheets, enabling relatively precise dimensional control and offering advantages in improving production efficiency and cutting accuracy.

[0003] The prior art publication number is CN219004766U, and the name is a utility model for a steel strip conveying and shearing device. Although this device solves the problem of quickly and efficiently flattening steel strips, making the cut steel sheets more regular, after shearing, the steel sheets will form sharp burrs and irregular cross-sections at the cut. These burrs not only easily scratch the operator, but may also damage other parts 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. However, the existing shearing device only has a shearing function and cannot perform a simultaneous grinding process on the steel sheet after shearing. As a result, the sheared steel sheet needs to be transferred to other grinding equipment for secondary processing. This not only increases the processing steps and production cycle, but also increases production costs. In addition, multiple transfers of the workpiece can easily cause damage to the surface of the steel sheet, reducing the product qualification rate. Therefore, a device that can perform a simultaneous grinding process on the steel sheet after shearing is provided to overcome the shortcomings of the prior art. Summary of the Invention

[0004] In response to the problem that existing devices cannot grind steel sheets after shearing, the present invention provides a shearing device for processing steel sheets built into bulletproof vests. The device can grind steel sheets, eliminate the safety hazards caused by sharp edges, avoid damage to the internal materials of the bulletproof vest, and effectively solve the problems mentioned in the above-mentioned background technology.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is:

[0006] A shearing device for processing steel sheets built into bulletproof vests comprises an operating table, wherein the upper end of the operating table is provided with a feed roller for driving the metal sheet to move, the upper end of the operating table is also provided with a shearing table, the shearing table is installed with a frame, a driving plate that can move up and down is installed in the frame, and a shearing knife that cooperates with the shearing table is provided at the lower end of the driving plate. When the driving plate moves downward, the metal sheet can be sheared under the mutual cooperation of the shearing knife and the shearing table; the upper end of the operating table is also provided with a grinding table that can move forward and backward, and grinding frames are provided on both sides of the grinding table. Two grinding plates are provided in the grinding frames. When the grinding table moves forward, the grinding frames can be extended outward to move to the two ends of the metal sheet, and the two grinding plates are closed inward to contact the metal sheet. When the grinding table continues to move forward, the grinding frame and the grinding plates can be moved back and forth in an oscillating manner.

[0007] A driver is provided at the upper end of the frame, a driving plate is mounted on the driver, and a shearing knife is detachably mounted at the lower end of the driving plate.

[0008] The grinding table is slidably connected to the operating table, and brackets are slidably connected to the front and rear sides of the lower end surface of the grinding table. The grinding frames are respectively installed on the corresponding brackets. The inner walls of the left and right ends of the grinding table are slidably connected to long sliders that can move up and down. Two first connecting rods are hinged on the inner sides of the two long sliders, and the upper ends of the first connecting rods are hinged on the corresponding brackets.

[0009] The outer end surfaces of the long sliders are fixedly connected with first movable pins, and both sides of the upper end of the operating table are fixedly connected with first guide frames. The first guide frames are provided with first inclined sliding grooves and first flat grooves that match the first movable pins.

[0010] The polishing frames are all slidably connected to the corresponding brackets, and the lower end surface of the polishing table is slidably connected to a double-headed telescopic plate. The polishing frame is fixed to both ends of the double-headed telescopic plate, and the lower end of the double-headed telescopic plate is fixed with a second movable pin. The upper end surface of the operating table is fixed with a second guide frame, and the second guide frame is provided with a second flat groove and a wave groove that match the second movable pin.

[0011] The inner walls of the upper and lower ends of the grinding frame are slidably connected with grinding plates, and the grinding sheets are arranged on the corresponding grinding plates. Long pins are fixed to the surfaces of the left and right ends of the grinding plates. Second guide plates are provided at the four end corners of the grinding table, and the second guide plates are provided with clamping grooves that match the long pins.

[0012] The grinding table is also provided with a fixing device, which includes a U-shaped frame. A pressing plate is provided in the U-shaped frame. When the grinding table moves forward, the pressing plate can move downward to squeeze and fix the metal sheet.

[0013] The inner wall of the U-shaped frame is slidably connected to a top plate, and the inner walls of the left and right ends of the top plate are slidably connected to long guide rods, and a pressure plate is fixed to the lower ends of the two long guide rods, and a second spring that matches the pressure plate is sleeved on the outer surface of the long guide rods; driven spur racks are fixedly connected to the left and right end surfaces of the top plate, and the upper ends of the long sliders are fixedly connected to active spur racks, and spur gears are rotatably connected to both sides of the grinding table, and the active spur rack and the driven spur rack are meshed on both sides of the corresponding spur gears.

[0014] A limiting device is provided on one side of the shearing table, which includes a rotatable bidirectional threaded rod. The left and right ends of the outer surface of the bidirectional threaded rod are threadedly connected to threaded sliders that are slidably connected to the shearing table, and the upper ends of the threaded sliders are rotatably connected to limiting wheels that cooperate with the metal sheet.

[0015] A driving seat is fixedly connected to the end faces of both sides of the driving plate, a first sliding pin is provided on the inner wall of the driving seat, and a first spring that cooperates with the first sliding pin is also provided on the inner wall of the driving seat; a first guide plate is fixedly connected to both sides of the grinding table, and a vertical groove, a first oblique groove and a second oblique groove are provided on the first guide plate that cooperate with the first sliding pin.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] When the present invention is in use, a metal sheet is placed between two feed rollers, and when the feed rollers rotate, the metal sheet can be driven to a specified position. By arranging a driving plate and a shearing knife that can move up and down, when the shearing knife moves downward, it can shear the metal sheet in cooperation with the shearing table, thereby shearing 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, and by controlling the grinding table to move forward, the grinding table, the metal sheet, the grinding frame, etc. can be synchronously moved forward away from the shearing table, so that movement interference with the shearing table can be prevented during grinding, and when the grinding table moves forward, the grinding frame can be moved outward. It extends and moves to the two ends of the metal sheet, that is, moves to the shearing position, and the two grinding discs can move inward and close together to contact the metal sheet, that is, contact the shearing position. When the grinding table continues to move forward, the grinding frame and the grinding discs can be moved back and forth and oscillated left and right. At this time, the grinding discs can grind the two ends of the sheared metal sheet. After grinding the steel sheet, the safety hazards caused by the sharp edges can be eliminated, and damage to the internal materials of the bulletproof vest can be avoided; the process turnover time and cost can be reduced, and the integrated shearing and grinding operation can be realized; the surface accuracy and anti-corrosion performance can be improved, the coating adhesion can be enhanced, and the assembly accuracy can be guaranteed; it can also reduce the scrap rate, reduce dust pollution, and achieve cost reduction, efficiency improvement and clean production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a first axonometric view of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0019] Figure 2 This is a second axonometric view of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0020] Figure 3 This is a schematic diagram of the installation of a limiting wheel of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0021] Figure 4 This is a schematic diagram of the installation of a shearing knife of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0022] Figure 5 This is a schematic diagram of the installation of the first guide plate of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0023] Figure 6 This is a cross-sectional view of a driving seat of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0024] Figure 7 This is a schematic structural diagram of the first guide plate of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0025] Figure 8 This is a schematic diagram of the installation of a grinding table for a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0026] Figure 9 This is a schematic diagram of the installation of a bracket for a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0027] Figure 10 This is a schematic diagram of the installation of a double-headed telescopic plate of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0028] Figure 11 This is a schematic diagram of the installation of a long pin of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0029] Figure 12 This is a schematic diagram of the installation of a grinding plate of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0030] Figure 13 This is a schematic diagram of the installation of the second guide frame of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0031] Figure 14 This is a schematic diagram of the installation of spur gears in a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0032] Figure 15 This is a cross-sectional view of a U-shaped frame of a shearing device for processing steel sheets built into bulletproof vests according to the present invention.

[0033] Numbers in the figure: 1-operating table, 2-lower hopper, 3-feed roller, 4-metal sheet, 5-cutting table, 6-bidirectional threaded rod, 7-threaded slider, 8-limiting wheel, 9-first handle, 10-frame, 11-driver, 12-drive plate, 13-cutting knife, 14-drive 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 pad, 22-second pad, 23-grinding table, 24-bracket, 25-first connecting rod, 26-long Slider, 27-first movable pin, 28-polishing frame, 29-polishing plate, 30-short guide rod, 31-polishing sheet, 32-second guide plate, 33-long pin, 35-clamping groove, 36-first guide frame, 37-U-shaped frame, 38-first inclined slide 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 spur rack, 46-spur gear, 47-driven spur rack, 48-top plate, 49-pressure plate, 50-long guide rod, 51-second spring. DETAILED DESCRIPTION

[0034] 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.

[0035] like Figures 1-15 As shown, the present invention provides a shearing device for processing steel sheets built into bulletproof vests, comprising an operating table 1, wherein a feed roller 3 for driving a metal sheet 4 to move is provided at the upper end of the operating table 1, a shearing table 5 is further 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 in the frame 10, a shearing knife 13 cooperating with the shearing table 5 is provided at the lower end of the driving plate 12, and when the driving plate 12 moves downward, the shearing knife 13 and the shearing table 5 cooperate with each other to be able to The upper end of the operating table 1 is also provided with a grinding table 23 that can move forward and backward. A grinding frame 28 is provided on both sides of the grinding table 23. Two grinding discs 31 are provided in the grinding frame 28. When the grinding table 23 moves forward, the grinding frame 28 can be extended outward to the two ends of the metal sheet 4, and the two grinding discs 31 are closed inward and contacted with the metal sheet 4. When the grinding table 23 continues to move forward, the grinding frame 28 and the grinding discs 31 can be moved back and forth in an oscillating manner.

[0036] like Figures 1-12As shown, the bottom of the operating table 1 is provided with a plurality of supporting legs, and the operating table 1 is used to support the entire device. The operating table 1 is a prior art and will not be described in detail. The feed roller 3 is provided with two and can rotate, and is arranged at the rear end of the operating table 1. By placing the metal sheet 4 between the two feed rollers 3, the metal sheet 4 can be driven to reach the specified position when the feed roller 3 rotates. The feed roller 3 is a prior art and will not be described in detail. The shearing table 5 is fixed on the operating table 1, and the frame 10 is used to install the drive plate 12, and the frame 10 is fixed on the shearing table 5 or the operating table 1; by arranging the drive plate 12 and the shearing knife 13 that can move up and down, when the shearing knife 13 moves downward, the metal sheet 4 can be sheared in cooperation with the shearing table 5, thereby shearing out the built-in steel sheet required for making the bulletproof vest; the grinding frame 28 is used to support the grinding sheet 31, and two grinding sheets 31 are respectively provided 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 at the grinding position. On the grinding table 23, by controlling the grinding table 23 to move forward, the grinding table 23, the metal sheet 4, the grinding frame 28, etc. can be synchronously moved forward away from the shearing table 5, and can prevent movement interference with the shearing table 5 during grinding. When the grinding table 23 moves forward, the grinding frame 28 can be extended outward to the two ends of the metal sheet 4, that is, moved to the shearing position, and the two grinding plates 31 can be moved inwardly 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 plates 31 can be moved back and forth to oscillate left and right. At this time, the grinding plates 31 can grind the two ends of the sheared metal sheet 4. After grinding the steel sheet, the safety hazards caused by the sharp edges can be eliminated, and damage to the internal materials of the bulletproof vest can be avoided; the process turnaround time and cost can be reduced, and the integrated shearing and grinding operation can be realized; the surface accuracy and anti-corrosion performance can be improved, the coating adhesion can be enhanced, and the assembly accuracy can be guaranteed; the scrap rate can also be reduced, dust pollution can be reduced, and cost reduction, efficiency improvement and clean production can be achieved.

[0037] A driver 11 is provided at the upper end of the frame 10 , a driving plate 12 is mounted on the driver 11 , and a shearing blade 13 is detachably mounted at the lower end of the driving plate 12 .

[0038] like Figure 4 As shown, the driver 11 is fixed to the frame 10 by bolts, and a driving telescopic rod is provided inside the driver 11. The driving plate 12 is fixed to the telescopic end of the driving telescopic rod, thereby controlling the up and down movement of the driving plate 12. The driver 11 and the driving telescopic rod are both existing technologies and are not described in detail. The shearing knife 13 is fixed to the driving plate 12 by bolts, so that the shearing knife 13 can be disassembled, which is convenient for regular maintenance, replacement, etc.

[0039] The grinding table 23 is slidably connected to the operating table 1, and the front and rear sides of the lower end surface of the grinding table 23 are slidably connected to the brackets 24. The grinding frames 28 are respectively installed on the corresponding brackets 24. The inner walls of the left and right ends of the grinding table 23 are slidably connected to long sliders 26 that can move up and down. The inner sides of the two long sliders 26 are hinged to two first connecting rods 25, and the upper ends of the first connecting rods 25 are hinged to the corresponding brackets 24.

[0040] like Figures 8-10 As shown, the grinding table 23 can slide back and forth on the upper surface of the operating table 1, the bracket 24 can slide back and forth on the lower surface of the grinding table 23, and the grinding frame 28 is installed on the bracket 24. When the bracket 24 moves, it can drive the two grinding frames 28 to move outward or inward; the long slider 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 slider 26, the first connecting rod 25, and the bracket 24 are as shown. Figure 10 As shown, when the long slider 26 moves upward, under the hinge of the first connecting rod 25, it can drive the two brackets 24 and the grinding frame 28 to move outward. Similarly, when the long slider 26 moves downward, it can drive the bracket 24 and the grinding frame 28 to move inward.

[0041] The outer end surfaces of the long slider 26 are fixed with first movable pins 27 , and both sides of the upper end of the operating table 1 are fixed with first guide frames 36 . The first guide frames 36 are provided with first inclined grooves 38 and first flat grooves 39 that match the first movable pins 27 .

[0042] like Figure 13As shown, when the grinding table 23 moves from back to front, the first movable pin 27 can engage with the first inclined slot 38, and 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 slot 38, the first movable pin 27 can move forward and upward at the same time, that is, the corresponding long slider 26 moves forward and upward at the same time, that is, the corresponding bracket 24 and the grinding frame 28 will extend and move outward while following the forward movement of the grinding table 23. 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 top position, that is, only The polishing frame 28 moves horizontally forward with the polishing table 23 and no longer moves upward, that is, the corresponding polishing frame 28 moves outward to the top specified position and then stops, that is, at this time the polishing frame 28 will only move forward with the polishing table 23 and no longer move outward, and the polishing frame 28 is in a stable state at the outermost end under the engagement of the first movable pin 27 and the first flat groove 39, which is convenient for the polishing frame 28 and the polishing sheet 31 to perform reciprocating left and right oscillation movement, that is, to polish the metal sheet 4; when the polishing table 23 moves from front to back and resets, 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 slide groove 38, that is, the corresponding bracket 24 and polishing frame 28 can move inward to the initial position.

[0043] The polishing frames 28 are all slidably connected to the corresponding brackets 24, and the lower end surface of the polishing table 23 is slidably connected to a double-headed telescopic plate 40. The polishing frame 28 is fixed to both ends of the double-headed telescopic plate 40, and the lower end of the double-headed telescopic plate 40 is fixed with a second movable pin 41. The upper end surface of the operating table 1 is fixed with a second guide frame 42, and the second guide frame 42 is provided with a second flat groove 43 and a wave groove 44 that cooperate with the second movable pin 41.

[0044] like Figure 10 、 Figure 13 As shown, the polishing frame 28 can slide left and right on the bracket 24, that is, the bracket 24 can drive the polishing frame 28 to move forward and backward when it moves forward and backward, and the polishing frame 28 does not affect the connection with the bracket 24 when it moves left and right; the double-headed telescopic plate 40 can slide left and right and is connected to the lower end surface of the polishing table 23, and the two ends of the double-headed telescopic plate 40 can be telescoped back and forth, that is, when the polishing frame 28 moves inward or outward following the bracket 24, the double-headed telescopic plate 40 can be retracted or extended outward, and when the double-headed telescopic plate 40 moves left and right, it can drive the polishing frame 28 to move left and right. The double-headed telescopic plate 40 is a prior art and will not be described in detail. The installation and shape of the second guide frame 42, the second live pin 41, the second flat groove 43 and the wave groove 44 are as shown in FIG. 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 synchronously follow the grinding table 23 to move forward. When the grinding table 23, the double-headed telescopic plate 40, etc. move forward to make the second live pin 41 move forward to enter the inner wall of the wave groove 44, the second live pin 41 can move forward and oscillate back and forth left and right, that is, the corresponding double-headed telescopic plate 40, the grinding frame 28, etc. will follow the grinding table 23 to move forward while oscillating back and forth left and right on the grinding table 23, so that the grinding sheet 31 can move against the metal The metal sheet 4 is polished. When the polishing table 23 is reset from front to back when it moves, the corresponding double-headed telescopic plate 40 and the second movable pin 41 can be reset to their initial positions. The second flat groove 43 is arranged corresponding to the first inclined slide groove 38, and the wave groove 44 is arranged corresponding to the first flat groove 39. With the cooperation of the first movable pin 27 and the first guide frame 36 and the second movable pin 41 and the second guide frame 42, when the polishing table 23 moves from back to front, the polishing frame 28 can be moved outward first. After the polishing frame 28 moves outward to the specified position, the polishing sheet 31 contacts the two ends of the metal sheet 4, and the polishing frame 28 then moves back and forth to make the polishing sheet 31 polish the two ends of the metal sheet 4.

[0045] The inner walls of the upper and lower ends of the grinding frame 28 are slidably connected with grinding plates 29, and the grinding sheets 31 are arranged on the corresponding grinding plates 29. Long pins 33 are fixed to the surfaces of the left and right ends of the grinding plates 29. Second guide plates 32 are provided at the four end corners of the grinding table 23, and the second guide plates 32 are provided with clamping grooves 35 that match the long pins 33.

[0046] like Figure 11-12 As shown, the inner walls of the upper and lower ends of the grinding frame 28 are fixed with multiple short guide rods 30, and the grinding plates 29 are sleeved on the outer surfaces of the short guide rods 30. The limit 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 plate 32 is fixed on the grinding table 23; the grinding sheet 31 is fixed on the grinding plate 29 by gluing, which is convenient for regular replacement of the grinding sheet 31; the installation and shape of the second guide plate 32, the long pin 33, the transverse groove, and the short oblique groove are as shown in FIG. Figure 11As shown, when the grinding frame 28, grinding plate 29, grinding sheet 31, long pin 33, etc. move from the inside to the outside, the long pin 33, in engagement with the clamping groove 35, can make the two long pins 33, grinding plate 29, grinding sheet 31 move inward, and when the grinding frame 28, grinding sheet 31, etc. move outward to the top position, the corresponding long pin 33, grinding plate 29, grinding sheet 31 can move inward to the top position, at this time the two grinding sheets 31 can squeeze and contact the two end positions of the metal sheet 4, when the grinding frame 28 moves back and forth oscillatingly When the two grinding frames 28 move outward, the corresponding long pins 33 can move outward under the engagement of the clamping groove 35, that is, the two grinding plates 31 move outward and no longer contact the metal sheet 4; the long pins 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, the long pins 33 can move left and right on the inner wall of the clamping groove 35 and always remain engaged with the clamping groove 35.

[0047] The grinding table 23 is also provided with a fixing device, which includes a U-shaped frame 37. A pressing plate 49 is provided in 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.

[0048] like Figure 14 As shown, the U-shaped frame 37 is used to support the installation of other components such as the pressure plate 49. Through the setting of the pressure plate 49, when the grinding table 23 moves forward, the pressure plate 49 can move downward to squeeze and fix the metal sheet 4 at the upper end of the grinding table 23, thereby preventing the metal sheet 4 from moving during grinding.

[0049] The inner wall of the U-shaped frame 37 is slidably connected to a top plate 48, and the inner walls of the left and right ends of the top plate 48 are slidably connected to long guide rods 50, and a pressure plate 49 is fixed to the lower ends of the two long guide rods 50. The outer surfaces of the long guide rods 50 are sleeved with second springs 51 that cooperate with the pressure plates 49; driven spur racks 47 are fixed to the left and right end surfaces of the top plate 48, and the upper ends of the long sliders 26 are fixed to the active spur racks 45. Both sides of the grinding table 23 are rotatably connected to spur gears 46, and the active spur racks 45 and the driven spur racks 47 are meshed on both sides of the corresponding spur gears 46.

[0050] like Figure 14-15 As shown, the top plate 48 can be slidably connected to the inner wall of the U-shaped frame 37 up and down, and the long guide rod 50 can be slidably connected to the inner wall of the top plate 48 up and down. The upper end surface of the long guide rod 50 is fixed with an anti-slip pad to prevent the long guide rod 50 from being separated from the top plate 48. The second spring 51 always has a downward driving force on the pressure plate 49, so that the pressure plate 49 is at the lowest end position of the top plate 48 under normal conditions; the installation and shape of the long slider 26, the active spur rack 45, the driven spur rack 47, and the spur gear 46 are as shown in FIG. Figure 14As shown, when the long slider 26 moves upward, it can drive the active spur rack 45 to move upward. The active spur rack 45 moves upward, and under the engagement with the spur gear 46, it can drive the driven spur rack 47, the top plate 48, the pressure plate 49, etc. to move downward, that is, the pressure plate 49 moves downward to squeeze the metal sheet 4. The second spring 51 provided can effectively protect the pressure plate 49 when squeezing the metal sheet 4, and prevent the metal sheet 4 from being damaged by overload and squeezing. 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 movable pin 27 and the first guide frame 36, the grinding frame 28 and the grinding sheet 31 can be moved outward. At the same time, the pressure plate 49 moves downward to squeeze and fix the metal sheet 4. When the grinding sheet 31 moves outward, the long pin 33 and the clamping groove 35 engage, and the two grinding sheets 31 are 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, the second movable pin 41 and the second guide frame 42 engage, and the grinding frame 28 and the grinding sheet 31 can be moved left and right in an oscillating manner, thereby grinding the two ends of the metal sheet 4. Figure 1 As shown, a lower hopper 2 is also provided on the operating table 1. After the metal sheet 4 is polished, the feed roller 3 is controlled to rotate, that is, the next metal sheet 4 to be sheared is driven to move forward, and the polished metal sheet 4 at the upper end of the polishing table 23 can be pushed forward and fall into the designated position under the guidance of the lower hopper 2.

[0051] A limiting device is provided on one side of the shearing table 5, which includes a rotatable bidirectional threaded rod 6. The left and right ends of the outer surface of the bidirectional threaded rod 6 are threadedly connected to threaded sliders 7 that are slidably connected to the shearing table 5. The upper ends of the threaded sliders 7 are rotatably connected to limiting wheels 8 that cooperate with the metal sheet 4.

[0052] like Figure 3 As shown, the left and right ends of the outer surface of the bidirectional threaded rod 6 are rotatably connected to support seats fixed to the shearing table 5, and the bidirectional threaded rod 6 is limited to rotate only on the shearing table 5; the left and right end surfaces of the bidirectional threaded rod 6 are fixed with first handles 9, and when the first handle 9 is driven, the bidirectional threaded rod 6 can be driven to rotate; the threaded slider 7 can slide left and right and is connected to one end face of the shearing table 5, and the left and right ends of the outer surface of the bidirectional threaded rod 6 are provided with two sections of threads with the same pitch but different rotation directions. When the bidirectional threaded rod 6 rotates, the threaded slider 7 and the limiting wheel 8 can be driven to move inward or outward, and the position between the two limiting wheels 8 can be adjusted according to the metal sheet 4. By setting the two limiting wheels 8, the metal sheet 4 can be limited to move only along the specified path, thereby improving the shearing accuracy.

[0053] The drive plate 12 is fixedly connected to the end faces on both sides with a drive seat 14, the inner wall of the drive seat 14 is provided with a first sliding pin 16, and the inner wall of the drive seat 14 is also provided with a first spring 15 that cooperates with the first sliding pin 16; the grinding table 23 is fixedly connected to the first guide plate 17 on both sides, and the first guide plate 17 is provided with a vertical groove 18, a first inclined groove 19 and a second inclined groove 20 that cooperates with the first sliding pin 16.

[0054] like Figure 5-Figure 7 As shown, the driving plate 12 can drive the driving seat 14 to move up and down when it moves up and down; the first guide plate 17 is fixed to the grinding table 23 through the connecting frame. When the first guide plate 17 moves forward and backward, it can drive the grinding table 23 to move forward and backward; the installation and shape of the driving seat 14, the first sliding pin 16, and the first spring 15 are as shown Figure 6 As shown, the first sliding pin 16 can slide left and right on the inner wall of the driving seat 14, and the first spring 15 always has an outward elastic force on the first sliding pin 16, so that the first sliding pin 16 is at the outermost end under normal conditions; the installation and shape of the first guide plate 17, the vertical groove 18, the first inclined groove 19, and the second inclined groove 20 are as shown Figure 6 and Figure 7 As shown, when the driving plate 12 and the driving seat 14 move from top to bottom, that is, when the first sliding pin 16 moves downward on the inner wall of the vertical groove 18, the first guide plate 17 will not move at this time, that is, the shearing knife 13 shears the metal sheet 4 at this time. After the shearing is completed, when the driving plate 12 and the driving seat 14 move from bottom to top, the first sliding pin 16 will engage with the first inclined groove 19. Under the engagement of the first inclined groove 19, the first guide plate 17 and the grinding table 23 can move forward. When the first sliding pin 16 moves upward to enter the inner wall of the second inclined groove 20, the first guide plate 17 and the grinding table 23 move forward to the top position, that is, the corresponding driving plate 12, the driving seat 14 and the first When the sliding pin 16 and the like continue to move upward, the first guide plate 17 and the grinding table 23 can be moved backward and reset. When the driving plate 12, the driving seat 14 and the first sliding pin 16 move upward to the top position, the first sliding pin 16 enters the inner wall of the vertical groove 18. At this time, the first guide plate 17 and the grinding table 23 can move backward and reset to the initial position; that is, by providing the first sliding pin 16, the first guide plate 17, etc., the grinding table 23 can be driven to move forward and backward, and can cooperate with the shearing knife 13 and share a driving force, saving costs. A separate driving telescopic rod can also be provided to drive the grinding table 23 to move forward and backward, but the relatively high cost is selected according to the needs. Figure 6 and Figure 7As shown, a first pad 21 is provided at the bottom of the vertical groove 18, and a second pad 22 is provided at the bottom of the second inclined groove 20. By cooperating with the first pad 21, the second pad 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 along the vertical groove 18, the first inclined groove 19, and the second inclined groove 20 in sequence; the first pad 21 and the second pad 22 are respectively provided with an inclined surface and a straight surface. When the first sliding pin 16 moves downward on the inner wall of the vertical groove 18 , 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 the inner wall of the driving seat 14 and retract. When the first sliding pin 16 moves downward to disengage from the first cushion block 21, that is, the first sliding pin 16 enters the inner wall of the first inclined groove 19, the first sliding pin 16 can pop out under the elastic force of the first spring 15, that is, extend again. When the first sliding pin 16 moves upward, under the direct surface obstruction of the first cushion block 21, the first sliding pin 16 can move along The inner wall of the first inclined groove 19 moves upward, that is, when the first sliding pin 16 moves from bottom to top, it will not enter the inner wall of the vertical groove 18, but 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 pad 22, and under the contact and engagement with the inclined surface of the second pad, a part of the first sliding pin 16 can enter the inner wall of the drive seat 14 and retract. When the first sliding pin 16 moves upward to the top, that is, enters the inner wall of the vertical groove 18, The first sliding pin 16 can be disengaged from the second pad 22. At this time, the first sliding pin 16 can be extended again under the elastic force of the first spring 15. When the first sliding pin 16 moves downward again, it is directly blocked by the second pad 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 pad 21 and the second pad 22, the first sliding pin 16 can only move along the vertical groove 18, the first inclined groove 19, and the second inclined groove 20 in this order.

[0055] When the present invention is in use, by placing the metal sheet 4 between the two feeding rollers 3, the metal sheet 4 can be driven to the specified position when the feeding rollers 3 rotate, and by arranging 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, thereby shearing out the built-in steel sheet required for making the bulletproof vest; after the metal sheet 4 is sheared, the sheared metal sheet 4 will stay on the grinding table 23, and by controlling the grinding table 23 to move forward, the grinding table 23, the metal sheet 4, the grinding frame 28, etc. can be synchronously moved forward away from the shearing table 5, so that the grinding table 23 can be prevented from interfering with the shearing table 5 during grinding. When the grinding table 23 moves forward, The grinding frame 28 extends outward and moves to the two ends of the metal sheet 4, that is, moves to the shearing position, and the two grinding discs 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 discs 31 can move back and forth and oscillate left and right. At this time, the grinding discs 31 can grind the two ends of the sheared metal sheet 4. After grinding the steel sheet, the safety hazards caused by the sharp edges can be eliminated, and damage to the internal materials of the bulletproof vest can be avoided; the process turnover time and cost can be reduced, and the integrated shearing and grinding operation can be realized; the surface accuracy and anti-corrosion performance can be improved, the coating adhesion can be enhanced, and the assembly accuracy can be guaranteed; the scrap rate can also be reduced, dust pollution can be reduced, and cost reduction, efficiency improvement and clean production can be achieved.

Claims

1. A shearing device for processing steel sheets built into bulletproof vests, comprising an operating table (1), characterized in that: The upper end of the operating table (1) is provided with a feeding roller (3) for driving the metal sheet (4) to move. The upper end of the operating 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 in 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 shearing knife (13) and the shearing table (5) cooperate with each other to shear the metal sheet (4); the operating table (1) A grinding table (23) capable of moving forward and backward is further provided at the upper end. A grinding frame (28) is provided on both sides of the grinding table (23). Two grinding sheets (31) are provided in the grinding frame (28). When the grinding table (23) moves forward, the grinding frame (28) can be extended outward to move to the two ends of the metal sheet (4), and the two grinding sheets (31) are closed inward to contact the metal sheet (4). When the grinding table (23) continues to move forward, the grinding frame (28) and the grinding sheets (31) can be moved back and forth in an oscillating manner. The grinding table (23) is slidably connected to the operating table (1), and the front and rear sides of the lower end surface of the grinding table (23) are slidably connected to brackets (24), and the grinding frames (28) are respectively installed on the corresponding brackets (24). The inner walls of the left and right ends of the grinding table (23) are slidably connected to long sliders (26) that can move up and down. The inner sides of the two long sliders (26) are hinged to two first connecting rods (25), and the upper ends of the first connecting rods (25) are hinged to the corresponding brackets (24); The inner walls of the upper and lower ends of the grinding frame (28) are slidably connected to grinding plates (29), and the grinding sheets (31) are arranged on the corresponding grinding plates (29). Long pins (33) are fixed to the surfaces of the left and right ends of the grinding plates (29). Second guide plates (32) are provided at the four end corners of the grinding table (23), and the second guide plates (32) are provided with clamping grooves (35) that match the long pins (33).

2. A shearing device for processing steel sheets built into bulletproof vests as claimed in claim 1, characterized in that: A driver (11) is provided at the upper end of the frame (10), a driving plate (12) is mounted on the driver (11), and a shearing knife (13) is detachably mounted at the lower end of the driving plate (12).

3. The shearing device for processing steel sheets built into bulletproof vests according to claim 1, characterized in that: The outer end surface of the long slider (26) is fixedly connected to a first movable pin (27), and both sides of the upper end of the operating table (1) are fixedly connected to a first guide frame (36). The first guide frame (36) is provided with a first inclined slot (38) and a first flat slot (39) that match the first movable pin (27).

4. The shearing device for processing steel sheets built into bulletproof vests according to claim 1, characterized in that: The polishing frames (28) are all slidably connected to the corresponding brackets (24), the lower end surface of the polishing table (23) is slidably connected to a double-headed telescopic plate (40), the polishing frame (28) is fixed to both ends of the double-headed telescopic plate (40), the lower end of the double-headed telescopic plate (40) is fixed to a second movable pin (41), the upper end surface of the operating table (1) is fixed to a second guide frame (42), and the second guide frame (42) is provided with a second flat groove (43) and a wave groove (44) that match the second movable pin (41).

5. The shearing device for processing steel sheets built into bulletproof vests according to claim 1, characterized in that: The grinding table (23) is also provided with a fixing device, which includes a U-shaped frame (37). A pressing plate (49) is provided in 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).

6. A shearing device for processing steel sheets built into bulletproof vests as claimed in claim 5, characterized in that: The inner wall of the U-shaped frame (37) is slidably connected to a top plate (48), and the inner walls of the left and right ends of the top plate (48) are slidably connected to long guide rods (50), and a pressure plate (49) is fixed to the lower ends of the two long guide rods (50). The outer surfaces of the long guide rods (50) are sleeved with second springs (51) that match the pressure plate (49); the left and right end surfaces of the top plate (48) are fixed with driven spur racks (47), the upper ends of the long sliders (26) are fixed with active spur racks (45), and both sides of the grinding table (23) are rotatably connected to spur gears (46), and the active spur racks (45) and the driven spur racks (47) are meshed on both sides of the corresponding spur gears (46).

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

8. The shearing device for processing steel sheets built into bulletproof vests according to claim 1, characterized in that: The drive plate (12) is fixedly connected to the end surfaces on both sides thereof with a drive seat (14), the inner wall of the drive seat (14) is provided with a first sliding pin (16), and the inner wall of the drive seat (14) is also provided with a first spring (15) matched with the first sliding pin (16); the grinding table (23) is fixedly connected to the first guide plate (17) on both sides thereof, and the first guide plate (17) is provided with a vertical groove (18) matched with the first sliding pin (16), a first inclined groove (19) and a second inclined groove (20).

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