A device for continuously measuring the external dimensions of a metal sheet

Abstract

The present invention discloses a device for continuously measuring the external dimensions of a metal sheet, belonging to the technical field of sheet measurement. It includes a thickness measuring mechanism for measuring the thickness of the metal sheet, on which there are a length and width mechanism for measuring the length and width of the metal sheet and a conveying mechanism for conveying the metal sheet. The thickness measuring mechanism provided by the present invention can automatically measure the thickness of the metal sheet, and the length and width mechanism can automatically measure the length and width of the metal sheet, with comprehensive measurement; the conveying mechanism provided by the present invention conveys one metal sheet to the lower part of the length and width mechanism each time, thereby realizing full-automatic continuous measurement of the metal sheet. At the same time, in the measurement chamber, the capacitance needle moves around the side of the metal sheet for one week to achieve comprehensive detection of the metal sheet, with high measurement accuracy; the conveying mechanism provided by the present invention can realize automatic feeding of the metal sheet and automatic discharging of the metal sheet after the detection is completed, with high automation degree.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet measurement, and particularly relates to a device for continuously measuring the external dimensions of a metal sheet. Background Art

[0002] Metal sheets are common materials in industrial production and daily life. Whether for decoration, protection, or as a frame, the functions can be achieved using metal sheets. However, in the production of metal sheets, there are cases where multiple dimensions are produced simultaneously on the same production line. At this time, corresponding dimension measurement devices need to be equipped to detect the dimensions of the metal sheets, which can not only verify the qualification rate of the sheets but also prepare for subsequent sub-packaging. The existing metal sheet external dimension measurement devices usually cannot achieve continuous and automatic measurement of the external dimensions of metal sheets and are overly dependent on the camera accuracy. Summary of the Invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a device for continuously measuring the external dimensions of a metal sheet, including a thickness measurement mechanism for measuring the thickness of the metal sheet. The thickness measurement mechanism includes a placement box, and a controller is arranged on the side of the placement box. A length and width mechanism for measuring the length and width of the metal sheet and a conveying mechanism for conveying the metal sheet are arranged on the thickness measurement mechanism. The length and width mechanism includes a disc frame, and the disc frame is fixedly installed on the placement box. The conveying mechanism includes a bottom motor, and the bottom motor is fixedly installed below the placement box.

[0004] Further, the thickness measurement mechanism includes a bottom electric cylinder fixedly installed below the placement box. The output end of the bottom electric cylinder is fixedly installed with an extending push block, and the extending push block is slidably installed on the placement box. A lifting block is fixedly installed on the extending push block, and an arc surface is arranged on the lifting block. A detection box is fixedly installed on the placement box, and an upper lifting block is slidably installed in the detection box. An arc is arranged on the lower surface of the upper lifting block, and the upper lifting block cooperates with the lifting block.

[0005] Further, a limiting rod is slidably installed on the placement box. A retracting frame is fixedly installed on the limiting rod, and a lower rack is fixedly installed on the retracting frame. An upper rack is fixedly installed on the extending push block. A docking gear, an upper acceleration gear, and a lower acceleration gear are rotatably installed below the placement box. The docking gear meshes with the upper rack, the upper acceleration gear meshes with the docking gear, the upper acceleration gear meshes with the lower acceleration gear, and the lower acceleration gear meshes with the lower rack.

[0006] When the metal sheet is conveyed to the detection box, the bottom motor stops rotating, the bottom electric cylinder extends, and drives the extended push block to slide along the placement box, thereby driving the lifting block to move, and the lifting block lifts the upper block, so that the upper block lifts the metal sheet in the detection box. When there is no metal sheet in the detection box, when the upper block is lifted to the highest point, the upper surface of the upper block just contacts the lower surface of the upper top plate. When the upper block lifts the metal sheet, due to the thickness of the metal sheet, the metal sheet will push the upper top plate upward, and the lifting spring is compressed. At this time, the thickness measuring column rises, and the rising distance of the thickness measuring column is the thickness of the metal sheet, which is measured by the distance sensor at the top of the thickness measuring column. When the extended push block moves, the upper rack drives the docking gear to rotate, and the upper acceleration gear and the lower acceleration gear are accelerated, driving the lower rack, the back frame and the limit rod to slide outward, so that the stroke of the limit rod is greater than the stroke of the extended push block, so that when the metal sheet rises to contact with the upper top plate, the limit rod has been completely separated from the limit rod, and the roller has contacted with the side of the metal sheet.

[0007] Furthermore, the length and width mechanism includes a fixed seat fixedly installed below the disc frame, the material of the lower surface of the disc frame is copper, a top motor is fixedly installed on the disc frame, a motor gear is fixedly installed on the motor shaft of the top motor, a gear shaft is rotatably installed on the disc frame, an upper gear and a lower gear are fixedly installed on the gear shaft, the motor gear is meshed with the upper gear, a rotating frame is rotatably installed outside the fixed seat, a center gear is fixedly installed on the rotating frame, the center gear is meshed with the lower gear, two inner sliding rods are slidably installed in the rotating frame, an inward spring is arranged between the inner sliding rod and the rotating frame, a capacitor needle is fixedly installed on the inner sliding rod, the capacitor needle contacts with the lower surface of the disc frame, a roller is rotatably installed on the inner sliding rod, a limit rod is rotatably installed on the inner sliding rod, contact blocks are rotatably installed on the two limit rods, the contact blocks contact with the limit rod, and the inward spring is in a stretched state in the initial state.

[0008] Furthermore, a thickness measuring column is slidably installed in the fixed seat, an upper top plate is fixedly installed below the thickness measuring column, a lifting spring is arranged between the upper top plate and the fixed seat, and a distance sensor is arranged on the top of the thickness measuring column.

[0009] As the limiting rod moves outward, the limiting rod will move away from the contact block. At this time, the retraction spring gradually rebounds, causing the inner slide rod, roller and capacitor needle to move inward. When the roller contacts the side of the metal plate, the retraction spring no longer rebounds, but still has elastic force. When the upper block rises to the highest point, the bottom electric cylinder stops for a short time, and the top motor controls the motor gear to rotate, thereby driving the upper gear, gear shaft and lower gear to rotate, thereby driving the center gear and rotating frame to rotate. Under the action of the retraction spring, the inner slide rod and the retraction spring slide together, and the roller is driven to circle around the outer wall of the metal plate. A pattern is formed through the capacitor needle and the lower surface of the disc frame, and is transmitted to the controller to obtain the length and width of the metal plate.

[0010] Further, the conveying mechanism includes a plurality of feeding friction wheels rotatably installed in the placing box, and two discharging friction wheels are rotatably installed on the detection box.

[0011] Further, a bottom motor is fixedly installed at the bottom of the detection box, a bottom gear is fixedly installed on the motor shaft of the bottom motor, a lower docking gear is rotatably installed at the bottom of the detection box, an inner docking gear is fixedly installed on the lower docking gear, the bottom gear meshes with the lower docking gear, a sliding seat is slidably installed at the bottom of the detection box, a slide seat spring is arranged between the sliding seat and the detection box, a driving wheel and two driven wheels are rotatably installed on the sliding seat, a driving gear is fixedly installed on the driving wheel, the driving gear meshes with the inner docking gear, a friction belt is wound around the driving wheel and the two driven wheels, in the initial state, the friction belt forms a friction drive with the feeding friction wheel closest to the detection box side, and the friction belt forms a friction drive with the discharging friction wheel.

[0012] Further, an outlet plate is slidably installed on the detection box, friction strips and openings are arranged on the outlet plate, a spring is arranged between the outlet plate and the detection box, a switch plate is rotatably installed on the placing box, and a torsion spring is arranged between the switch plate and the placing box.

[0013] During use, metal plates are stacked in the placing box, the bottom motor controls the bottom gear to rotate, the bottom gear drives the lower docking gear and the inner docking gear to rotate, thereby driving the driving gear and the driving wheel to rotate, thereby driving the friction belt to rotate, the friction belt drives the feeding friction wheel closest to the detection box side and the discharging friction wheel to rotate through friction drive, the bottommost metal plate is conveyed towards the detection box by the feeding friction wheel, the metal plate pushes the switch plate, so that the switch plate rotates relative to the placing box, and the torsion spring is twisted. When the metal plate is conveyed to contact with the outlet plate, the bottom motor stops rotating, and at this time the bottom electric cylinder starts to extend.

[0014] After the measurement of the metal sheet is completed, the bottom electric cylinder continues to extend, causing the jacking block to reach behind the upper jacking block. At this time, the metal sheet and the upper jacking block descend under the action of gravity, and the metal sheet falls back into the detection box. The extended push block continues to move forward and will contact the sliding seat, pushing the sliding seat to slide along the detection box. The slide seat spring is compressed, causing the friction belt to disengage from the feeding friction wheel, and the friction belt only forms a friction drive with the discharging friction wheel. When the bottom electric cylinder extends to the farthest position, the extended push block pushes the sliding seat to the limit position. At this time, the friction belt contacts the friction strip to form a friction drive. At this time, the bottom electric cylinder stops, and the bottom motor starts to rotate, causing the friction belt to rotate and drive the friction strip and the outlet plate to rise. The spring between the outlet plate and the detection box is compressed, causing the opening on the outlet plate to reach the front of the detection box. At the same time, the friction belt drives the discharging friction wheel to rotate, and the discharging friction wheel sends the metal sheet through the opening on the outlet plate and out of the detection box. The outlet plate returns to its original position under the spring's resilience. Subsequently, the bottom motor stops rotating, and the bottom electric cylinder quickly retracts. The limiting rod pushes the contact block again, causing the inner sliding rod to extend to the farthest position again. The inner retracting spring is stretched and returns to the initial state. The sliding seat returns to its original position under the resilience of the slide seat spring, and the friction belt resumes contact with the feeding friction wheel.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: (1) The thickness measuring mechanism provided by the present invention can automatically measure the thickness of the metal sheet, and the length and width of the metal sheet can be automatically measured by the length and width mechanism, with comprehensive measurement; (2) The conveying mechanism provided by the present invention transports one metal sheet to the lower part of the length and width mechanism each time, and then conducts full-automatic continuous measurement on the metal sheet. At the same time, in the measurement chamber, the capacitance needle moves around the side of the metal sheet for one week to achieve comprehensive detection of the metal sheet, with high measurement accuracy; (3) The conveying mechanism provided by the present invention can realize automatic feeding of the metal sheet and automatic discharging of the metal sheet after the detection is completed, with high automation degree. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the thickness measuring mechanism of the present invention Figure 1 。

[0018] Figure 3 It is a schematic diagram of the structure of the thickness measuring mechanism of the present invention Figure 2 。

[0019] Figure 4 It is a schematic diagram of the structure of the length and width mechanism of the present invention Figure 1 。

[0020] Figure 5 It is a schematic diagram of the structure of the length and width mechanism of the present invention Figure 2 。

[0021] Figure 6 Schematic diagram of the length and width mechanism of the present invention Figure 3 。

[0022] Figure 7 Schematic diagram of the conveying mechanism of the present invention Figure 1 。

[0023] Figure 8 Schematic diagram of the conveying mechanism of the present invention Figure 2 。

[0024] Figure 9 Schematic diagram of the conveying mechanism of the present invention Figure 3 。

[0025] Reference numerals: 101 - placing box; 102 - limiting rod; 103 - bottom electric cylinder; 104 - protruding push block; 105 - jacking block; 106 - upper jacking block; 107 - upper rack; 108 - docking gear; 109 - upper acceleration gear; 110 - lower acceleration gear; 111 - lower rack; 112 - retracting frame; 113 - detection box; 201 - disc frame; 202 - top motor; 203 - motor gear; 204 - upper gear; 205 - thickness measuring column; 206 - fixing seat; 207 - upper top plate; 208 - jacking spring; 209 - rotating frame; 210 - central gear; 211 - gear shaft; 212 - lower gear; 213 - inner sliding rod; 214 - retracting spring; 215 - capacitance needle; 216 - limiting rod; 217 - roller; 218 - contact block; 301 - bottom motor; 302 - bottom gear; 303 - lower docking gear; 304 - inner docking gear; 305 - driving gear; 306 - driving wheel; 307 - driven wheel; 308 - friction belt; 309 - sliding seat; 310 - sliding seat spring; 311 - feeding friction wheel; 312 - discharging friction wheel; 313 - switch plate; 314 - outlet plate; 315 - friction strip; 316 - torsion spring. Detailed implementation manners

[0026] The following further describes the detailed implementation manners of the present invention with reference to the accompanying drawings.

[0027] Example: Refer to Figures 1-9 , a device for continuously measuring the external dimensions of a metal sheet, including a thickness measuring mechanism for measuring the thickness of the metal sheet. The thickness measuring mechanism includes a placing box 101, a controller is arranged on the side of the placing box 101, a length and width mechanism for measuring the length and width of the metal sheet and a conveying mechanism for conveying the metal sheet are arranged on the thickness measuring mechanism. The length and width mechanism includes a disc frame 201, and the disc frame 201 is fixedly installed with the placing box 101. The conveying mechanism includes a bottom motor 301, and the bottom motor 301 is fixedly installed below the placing box 101.

[0028] Such as Figure 2 、Figure 3 As shown in the figure, the thickness measuring mechanism includes a bottom electric cylinder 103 fixedly installed below the placement box 101. The output end of the bottom electric cylinder 103 is fixedly installed with an extending push block 104. The extending push block 104 is slidably installed with the placement box 101. A jacking block 105 is fixedly installed on the extending push block 104. The jacking block 105 is provided with an arc surface. A detection box 113 is fixedly installed on the placement box 101. An upper jacking block 106 is slidably installed in the detection box 113. The lower surface of the upper jacking block 106 is provided with an arc. The upper jacking block 106 cooperates with the jacking block 105.

[0029] As Figure 2 , Figure 3 As shown in the figure, a limiting rod 102 is slidably installed on the placement box 101. A rearward frame 112 is fixedly installed on the limiting rod 102. A lower rack 111 is fixedly installed on the rearward frame 112. An upper rack 107 is fixedly installed on the extending push block 104. A docking gear 108, an upper acceleration gear 109 and a lower acceleration gear 110 are rotatably installed below the placement box 101. The docking gear 108 meshes with the upper rack 107. The upper acceleration gear 109 meshes with the docking gear 108. The upper acceleration gear 109 meshes with the lower acceleration gear 110. The lower acceleration gear 110 meshes with the lower rack 111.

[0030] After the metal sheet is conveyed onto the detection box 113, at this time, the bottom motor 301 stops rotating, and the bottom electric cylinder 103 extends, driving the extending push block 104 to slide along the placement box 101, thereby driving the jacking block 105 to move. The jacking block 105 jacks up the upper jacking block 106, so that the upper jacking block 106 jacks up the metal sheet in the detection box 113. When there is no metal sheet in the detection box 113 and the upper jacking block 106 is jacked up to the highest point, the upper surface of the upper jacking block 106 just contacts the lower surface of the upper top plate 207. After the upper jacking block 106 jacks up the metal sheet, due to the thickness of the metal sheet, the metal sheet will jack up the upper top plate 207, and the jacking spring 208 is compressed. At this time, the thickness measuring column 205 rises. The rising distance of the thickness measuring column 205 is the thickness of the metal sheet, which is measured by the distance sensor at the top of the thickness measuring column 205. When the extending push block 104 moves, it drives the docking gear 108 to rotate through the upper rack 107, and is accelerated by the upper acceleration gear 109 and the lower acceleration gear 110, driving the lower rack 111, the rearward frame 112 and the limiting rod 102 to slide outwards, so that the stroke of the limiting rod 102 is greater than the stroke of the extending push block 104, so that when the metal sheet rises to contact the upper top plate 207, the limiting rod 102 has completely disengaged from the limiting rod 216, and at this time, the roller 217 has contacted the side surface of the metal sheet.

[0031] As Figures 4-6As shown in the figure, the length and width mechanism includes a fixed seat 206 fixedly installed below the disc frame 201. The material of the lower surface of the disc frame 201 is copper. A top motor 202 is fixedly installed on the disc frame 201. A motor gear 203 is fixedly installed on the motor shaft of the top motor 202. A gear shaft 211 is rotatably installed on the disc frame 201. An upper gear 204 and a lower gear 212 are fixedly installed on the gear shaft 211. The motor gear 203 meshes with the upper gear 204. A rotating frame 209 is rotatably installed outside the fixed seat 206. A central gear 210 is fixedly installed on the rotating frame 209. The central gear 210 meshes with the lower gear 212. Two inner sliding rods 213 are slidably installed inside the rotating frame 209. An inner retracting spring 214 is arranged between the inner sliding rod 213 and the rotating frame 209. A capacitance needle 215 is fixedly installed on the inner sliding rod 213. The capacitance needle 215 contacts the lower surface of the disc frame 201. A roller 217 is rotatably installed on the inner sliding rod 213. A limiting rod 216 is rotatably installed on the inner sliding rod 213. A contact block 218 is rotatably installed on the two limiting rods 216. The contact block 218 contacts the limiting rod 102. In the initial state, the inner retracting spring 214 is in a stretched state.

[0032] As Figures 4-6 shown, a thickness measuring column 205 is slidably installed inside the fixed seat 206. An upper top plate 207 is fixedly installed below the thickness measuring column 205. A top-up spring 208 is arranged between the upper top plate 207 and the fixed seat 206. A distance sensor is arranged at the top of the thickness measuring column 205.

[0033] As the limiting rod 102 moves outwards, the limiting rod 102 will move away from the contact block 218. At this time, the inner retracting spring 214 gradually rebounds, causing the inner sliding rod 213, the roller 217, and the capacitance needle 215 to move inwards. When the roller 217 contacts the side of the metal plate, the inner retracting spring 214 no longer rebounds, but still has elasticity. When the upper top block 106 rises to the highest point, the bottom electric cylinder 103 stops for a short period of time. The top motor 202 controls the rotation of the motor gear 203, thereby driving the upper gear 204, the gear shaft 211, and the lower gear 212 to rotate, thereby driving the central gear 210 and the rotating frame 209 to rotate. Thus, under the action of the inner retracting spring 214, in cooperation with the sliding of the inner sliding rod 213 and the inner retracting spring 214, the roller 217 is driven to travel around the outer wall of the metal plate for one week. A pattern is formed through the capacitance needle 215 and the lower surface of the disc frame 201 and transmitted to the controller to obtain the length and width dimensions of the metal plate.

[0034] As Figures 7-9 shown, the conveying mechanism includes a plurality of feeding friction wheels 311 rotatably installed inside the placement box 101. Two discharging friction wheels 312 are rotatably installed on the detection box 113.

[0035] As Figures 7-9As shown in the figure, a bottom motor 301 is fixedly installed at the bottom of the detection box 113. A bottom gear 302 is fixedly installed on the motor shaft of the bottom motor 301. A lower docking gear 303 is rotatably installed at the bottom of the detection box 113. An inner docking gear 304 is fixedly installed on the lower docking gear 303. The bottom gear 302 meshes with the lower docking gear 303. A sliding seat 309 is slidably installed at the bottom of the detection box 113. A slide seat spring 310 is provided between the sliding seat 309 and the detection box 113. A driving wheel 306 and two driven wheels 307 are rotatably installed on the sliding seat 309. A driving gear 305 is fixedly installed on the driving wheel 306. The driving gear 305 meshes with the inner docking gear 304. A friction belt 308 is wound around the driving wheel 306 and the two driven wheels 307. In the initial state, the friction belt 308 forms a friction drive with the feeding friction wheel 311 closest to the detection box 113, and the friction belt 308 forms a friction drive with the discharging friction wheel 312.

[0036] As Figures 7-9 As shown in the figure, an outlet plate 314 is slidably installed on the detection box 113. Friction strips 315 and openings are provided on the outlet plate 314. A spring is provided between the outlet plate 314 and the detection box 113. A switch plate 313 is rotatably installed on the placement box 101. A torsion spring 316 is provided between the switch plate 313 and the placement box 101.

[0037] During use, metal sheets are stacked in the placement box 101. The bottom motor 301 controls the rotation of the bottom gear 302. The bottom gear 302 drives the lower docking gear 303 and the inner docking gear 304 to rotate, thereby driving the driving gear 305 and the driving wheel 306 to rotate, and then driving the friction belt 308 to rotate. The friction belt 308 drives the feeding friction wheel 311 and the discharging friction wheel 312 closest to the detection box 113 through friction drive. The lowermost metal sheet is conveyed towards the detection box 113 through the feeding friction wheel 311. The metal sheet pushes the switch plate 313, causing the switch plate 313 to rotate relative to the placement box 101, and the torsion spring 316 is twisted. When the metal sheet is conveyed to contact the outlet plate 314, the bottom motor 301 stops rotating. At this time, the bottom electric cylinder 103 starts to extend.

[0038] After the measurement of the metal sheet is completed, the bottom electric cylinder 103 continues to extend, causing the jacking block 105 to reach behind the upper jacking block 106. At this time, the metal sheet and the upper jacking block 106 descend under the action of gravity, and the metal sheet falls back into the detection box 113. The extended push block 104 continues to move forward and contacts the sliding seat 309, pushing the sliding seat 309 to slide along the detection box 113. The slide seat spring 310 is compressed, causing the friction belt 308 to disengage from the feeding friction wheel 311, and the friction belt 308 only forms a friction drive with the sending friction wheel 312. When the bottom electric cylinder 103 extends to the farthest, the extended push block 104 pushes the sliding seat 309 to the limit position. At this time, the friction belt 308 contacts the friction strip 315 to form a friction drive. At this time, the bottom electric cylinder 103 stops, and the bottom motor 301 starts to rotate, causing the friction belt 308 to rotate and drive the friction strip 315 and the outlet plate 314 to rise. The spring between the outlet plate 314 and the detection box 113 is compressed, causing the opening on the outlet plate 314 to reach in front of the detection box 113. At the same time, the friction belt 308 drives the sending friction wheel 312 to rotate, and the sending friction wheel 312 sends the metal sheet through the opening on the outlet plate 314 and out of the detection box 113. The outlet plate 314 resets under the spring's rebound. Subsequently, the bottom motor 301 stops rotating, and the bottom electric cylinder 103 quickly retracts. The limiting rod 102 pushes the contact block 218 again, causing the inner sliding rod 213 to extend to the farthest again. The inner retracting spring 214 is stretched and returns to the initial state. The sliding seat 309 resets under the rebound of the slide seat spring 310, and the friction belt 308 resumes contact with the feeding friction wheel 311.

[0039] The working principle of a device for continuously measuring the external dimensions of a metal sheet disclosed in the present invention is as follows: During use, metal sheets are stacked in the placement box 101. The bottom motor 301 controls the rotation of the bottom gear 302. The bottom gear 302 drives the lower docking gear 303 and the inner docking gear 304 to rotate, thereby driving the driving gear 305 and the driving wheel 306 to rotate, and then driving the friction belt 308 to rotate. The friction belt 308 drives the feeding friction wheel 311 and the discharging friction wheel 312 closest to the detection box 113 to rotate through frictional transmission. The bottommost metal sheet is conveyed towards the detection box 113 by the feeding friction wheel 311. The metal sheet pushes open the switch plate 313, causing the switch plate 313 to rotate relative to the placement box 101, and the torsion spring 316 is twisted. When the metal sheet is conveyed to contact the outlet plate 314, the bottom motor 301 stops rotating. At this time, the bottom electric cylinder 103 starts to extend. When the metal sheet is conveyed onto the detection box 113, the bottom motor 301 stops rotating, and the bottom electric cylinder 103 extends, driving the protruding push block 104 to slide along the placement box 101, thereby driving the lifting block 105 to move. The lifting block 105 lifts the upper lifting block 106, and then the upper lifting block 106 lifts the metal sheet in the detection box 113. When there is no metal sheet in the detection box 113, when the upper lifting block 106 is lifted to the highest position, the upper surface of the upper lifting block 106 just contacts the lower surface of the upper top plate 207. After the upper lifting block 106 lifts the metal sheet, due to the thickness of the metal sheet, the metal sheet will push the upper top plate 207 upward, and the lifting spring 208 is compressed. At this time, the thickness measuring column 205 rises, and the rising distance of the thickness measuring column 205 is the thickness of the metal sheet, which is measured by the distance sensor at the top of the thickness measuring column 205. When the protruding push block 104 moves, it drives the docking gear 108 to rotate through the upper rack 107. Through the acceleration of the upper acceleration gear 109 and the lower acceleration gear 110, it drives the lower rack 111, the retracting frame 112, and the limiting rod 102 to slide outwards, making the stroke of the limiting rod 102 greater than the stroke of the protruding push block 104. When the metal sheet rises to contact the upper top plate 207, the limiting rod 102 has completely disengaged from the limiting rod 216, and at this time, the roller 217 has contacted the side surface of the metal sheet.As the limiting rod 102 moves outward, the limiting rod 102 will move away from the contact block 218. At this time, the adduction spring 214 gradually rebounds, causing the inner sliding rod 213, the roller 217, and the capacitive needle 215 to move inward. When the roller 217 contacts the side of the metal plate, the adduction spring 214 no longer rebounds but still has elasticity. When the upper top block 106 rises to the highest point, the bottom electric cylinder 103 stops for a short period of time. The top motor 202 controls the rotation of the motor gear 203, which drives the upper gear 204, the gear shaft 211, and the lower gear 212 to rotate, thereby driving the central gear 210 and the rotating frame 209 to rotate. Thus, under the action of the adduction spring 214, in cooperation with the sliding of the inner sliding rod 213 and the adduction spring 214, the roller 217 is driven to travel around the outer wall of the metal plate. A pattern is formed by the capacitive needle 215 and the lower surface of the disc frame 201 and transmitted to the controller to obtain the length and width dimensions of the metal plate. After the measurement of the metal plate is completed, the bottom electric cylinder 103 continues to extend, causing the jacking block 105 to reach behind the upper top block 106. At this time, the metal plate and the upper top block 106 descend under the action of gravity, and the metal plate falls back into the detection box 113. The protruding push block 104 continues to move forward and will contact the sliding seat 309, pushing the sliding seat 309 to slide along the detection box 113. The slide seat spring 310 is compressed, causing the friction belt 308 to disengage from the feeding friction wheel 311, and the friction belt 308 only forms a friction drive with the sending-out friction wheel 312. When the bottom electric cylinder 103 extends to the farthest, the protruding push block 104 pushes the sliding seat 309 to the limit position. At this time, the friction belt 308 contacts the friction strip 315 to form a friction drive. At this time, the bottom electric cylinder 103 stops, and the bottom motor 301 starts to rotate, causing the friction belt 308 to rotate and drive the friction strip 315 and the outlet plate 314 to rise. The spring between the outlet plate 314 and the detection box 113 is compressed, causing the opening on the outlet plate 314 to reach in front of the detection box 113. At the same time, the friction belt 308 drives the sending-out friction wheel 312 to rotate, and the sending-out friction wheel 312 sends the metal plate through the opening on the outlet plate 314 and out of the detection box 113. The outlet plate 314 resets under the rebound of the spring. Subsequently, the bottom motor 301 stops rotating, and the bottom electric cylinder 103 quickly retracts. The limiting rod 102 pushes the contact block 218 again, causing the inner sliding rod 213 to extend to the farthest again. The adduction spring 214 is stretched and returns to the initial state. The sliding seat 309 resets under the rebound of the slide seat spring 310, and the friction belt 308 resumes contact with the feeding friction wheel 311.

[0040] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope of the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A device for continuously measuring the external dimensions of a metal sheet, comprising a thickness measuring mechanism for measuring the thickness of the metal sheet, characterized in that: The thickness measuring mechanism comprises a placement box (101), a controller is arranged on the side of the placement box (101), a length and width mechanism for measuring the length and width of the metal plate and a conveying mechanism for conveying the metal plate are arranged on the thickness measuring mechanism, the length and width mechanism comprises a disc rack (201), the disc rack (201) is fixedly mounted on the placement box (101), the conveying mechanism comprises a bottom motor (301), the bottom motor (301) is fixedly mounted below the placement box (101), and a limiting rod (102) is slidably mounted on the placement box (101); The length-width mechanism comprises a fixed seat (206) fixedly mounted below the disc frame (201); the material of the lower surface of the disc frame (201) is copper; a top motor (202) is fixedly mounted on the disc frame (201); a motor gear (203) is fixedly mounted on the motor shaft of the top motor (202); a gear shaft (211) is rotatably mounted on the disc frame (201); an upper gear (204) and a lower gear (212) are fixedly mounted on the gear shaft (211); the motor gear (203) meshes with the upper gear (204); a rotating frame (209) is rotatably mounted outside the fixed seat (206); a central gear (210) is fixedly mounted on the rotating frame (209); and the central gear (211) is (210) meshes with the lower gear (212), two inner slide bars (213) are slidably installed in the rotating frame (209), an inward spring (214) is arranged between the inner slide bar (213) and the rotating frame (209), a capacitor needle (215) is fixedly installed on the inner slide bar (213), the capacitor needle (215) contacts the lower surface of the disc frame (201), a roller (217) is rotatably installed on the inner slide bar (213), a limit rod (216) is rotatably installed on the inner slide bar (213), contact blocks (218) are rotatably installed on the two limit rods (216), the contact blocks (218) contact the limit rod (102), and the inward spring (214) is in a stretched state in the initial state.

2. The device for continuously measuring the external dimensions of a metal sheet according to claim 1, characterized in that: The thickness measuring mechanism comprises a bottom electric cylinder (103) fixedly mounted below the placement box (101); a protruding push block (104) is fixedly mounted on the output end of the bottom electric cylinder (103); the protruding push block (104) is slidably mounted with the placement box (101); a lifting block (105) is fixedly mounted on the protruding push block (104); the lifting block (105) is provided with an arc surface; a detection box (113) is fixedly mounted on the placement box (101); an upper lifting block (106) is slidably mounted in the detection box (113); a lower surface of the upper lifting block (106) is provided with an arc; the upper lifting block (106) cooperates with the lifting block (105).

3. The device for continuously measuring the external dimensions of a metal sheet according to claim 2, characterized in that: A retreat frame (112) is fixedly mounted on the limiting rod (102), a lower rack (111) is fixedly mounted on the retreat frame (112), an upper rack (107) is fixedly mounted on the extended push block (104), a docking gear (108), an upper acceleration gear (109) and a lower acceleration gear (110) are rotatably mounted below the placement box (101), the docking gear (108) meshes with the upper rack (107), the upper acceleration gear (109) meshes with the docking gear (108), the upper acceleration gear (109) meshes with the lower acceleration gear (110), and the lower acceleration gear (110) meshes with the lower rack (111).

4. The device for continuously measuring the external dimensions of a metal sheet according to claim 1, characterized in that: A thickness measuring column (205) is slidably mounted in the fixed seat (206), an upper top plate (207) is fixedly mounted below the thickness measuring column (205), a lifting spring (208) is arranged between the upper top plate (207) and the fixed seat (206), and a distance sensor is arranged on the top of the thickness measuring column (205).

5. The device for continuously measuring the external dimensions of a metal sheet according to claim 2, characterized in that: The conveying mechanism comprises a plurality of feeding friction wheels (311) rotatably mounted in the placement box (101), and two feeding friction wheels (312) rotatably mounted on the detection box (113).

6. The device for continuously measuring the external dimensions of a metal sheet according to claim 5, characterized in that: A bottom motor (301) is fixedly mounted on the bottom of the detection box (113); a bottom gear (302) is fixedly mounted on the motor shaft of the bottom motor (301); a lower docking gear (303) is rotatably mounted on the bottom of the detection box (113); an inner docking gear (304) is fixedly mounted on the lower docking gear (303); the bottom gear (302) meshes with the lower docking gear (303); a sliding seat (309) is slidably mounted on the bottom of the detection box (113); a sliding seat spring (310) is provided between the sliding seat (309) and the detection box (113). ), a driving wheel (306) and two driven wheels (307) are rotatably mounted on the sliding seat (309), a driving gear (305) is fixedly mounted on the driving wheel (306), the driving gear (305) is meshed with the inner docking gear (304), a friction belt (308) is wound around the driving wheel (306) and the two driven wheels (307), in an initial state, the friction belt (308) forms a friction transmission with a feeding friction wheel (311) on a side closest to the detection box (113), and the friction belt (308) forms a friction transmission with a delivery friction wheel (312).

7. The device for continuously measuring the external dimensions of a metal sheet according to claim 5, characterized in that: An outlet plate (314) is slidably mounted on the detection box (113), a friction strip (315) and an opening are provided on the outlet plate (314), a spring is provided between the outlet plate (314) and the detection box (113), a switch plate (313) is rotatably mounted on the placement box (101), and a torsion spring (316) is provided between the switch plate (313) and the placement box (101).

Images