T-shaped hollow elevator guide rail blank punching production line and working method thereof

Abstract

The application discloses a T-shaped hollow elevator guide rail blank punching production line and a working method thereof, belongs to the elevator guide rail machining technical field, and comprises feeding components, a first rolling feeding component, a cutting machine tool, a second rolling feeding component, a front-end punching machine tool, a third rolling feeding component, a rear-end punching machine tool and a measuring rolling feeding component which are arranged in a straight line. The application realizes the full automation of the flattening, rolling feeding, cutting and punching of the T-shaped hollow elevator guide rail blank. In the rolling feeding process, the thickness error of the coiled steel is avoided to cause the unsmooth rolling feeding of the roller or the damage of the coiled steel by the roller until the coiled steel cannot be rolled. In the process that the roller rolls the T-shaped hollow elevator guide rail blank, two sets of guide wheel groups are always clamped to the middle position of the rolling feeding component under the action of the spring force, so that the width error of the coiled steel is avoided to cause the inclination or the unrolling feeding in the rolling feeding process. The T-shaped hollow elevator guide rail blank punching production line of the application is suitable for the machining of T-shaped hollow elevator guide rails with different lengths, and the application range of the application is expanded.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of elevator guide rail, and relates to a long strip thin plate punching production line, in particular to a T-shaped hollow elevator guide rail blank punching production line and a working method thereof. BACKGROUND

[0002] During the operation of a compartment elevator, the elevator guide rail is a relatively important structure. The existing elevator guide rail is mostly in a T-shaped structure. In order to reduce the difficulty in hoisting and installation and reduce the cost of materials, the T-shaped elevator guide rail is mostly in a hollow form.

[0003] In order to adapt to the use of elevators of different heights, a plurality of T-shaped hollow elevator guide rails need to be connected in series through connecting pieces. Therefore, corresponding holes need to be processed at both ends of each T-shaped hollow elevator guide rail. At present, the holes are basically processed in an artificial manner. Such artificial operation has the following disadvantages: the position error of the processed holes is large; the labor intensity of workers is large; and the production efficiency is low. SUMMARY

[0004] The purpose of the present application is to provide a T-shaped hollow elevator guide rail blank punching production line, and to realize the full automation of the flattening, rolling, cutting and punching of the T-shaped hollow elevator guide rail blank.

[0005] The technical scheme of the present application is as follows: the present application comprises a feeding component, a first rolling component, a cutting machine, a second rolling component, a front-end punching machine, a third rolling component, a rear-end punching machine and a measuring rolling component which are connected with each other; the feeding component, the first rolling component, the cutting machine, the second rolling component, the front-end punching machine, the third rolling component, the rear-end punching machine and the measuring rolling component are arranged in a straight line;

[0006] The first rolling component comprises a first rolling assembly, a first conveying bracket assembly and two first double-shaft air cylinders which are connected with each other from top to bottom;

[0007] The first rolling assembly comprises four flange linear bearings, a rolling flat plate, a plurality of rollers, a double-chain wheel, a rolling motor, four pressing rods and a first bearing with a seat;

[0008] The plurality of rollers are installed in a linear array on the bottom surface of the rolling flat plate through the first bearing with a seat. A double-chain wheel is installed at one end of the roller. The rolling motor is installed on the top surface of the rolling flat plate,

[0009] A chain wheel is installed on the output shaft of the rolling motor. The double-chain wheels installed at the one end of the roller are connected with each other through chains. The chain wheel installed on the output shaft of the rolling motor is connected with the double-chain wheel on one of the rollers through a chain;

[0010] Four said flange linear bearings are installed in linear array at four corners of the rolling plate, and four said pressure rods are installed in linear array on the bottom surface of the rolling plate;

[0011] The first conveying bracket assembly comprises a first bracket, four first guide rods, two sets of guide wheel groups, and at least four horizontal telescopic springs;

[0012] A left through hole, a left recess, a right recess, and a right through hole are formed in the first bracket, and at least two first spring holes for accommodating the horizontal telescopic springs are formed in the left recess and the right recess,

[0013] The two sets of guide wheel groups are movably installed in the left recess and the right recess of the first bracket through the at least two horizontal telescopic springs;

[0014] Four said first guide rods are installed in linear array on the top surface of the first bracket;

[0015] The guide wheel group comprises an open slot frame, a vertical telescopic spring, a long strip plate, a plurality of guide wheels, and a strip-shaped limiting plate;

[0016] The long strip plate is movably installed in the open slot frame through the vertical telescopic spring, the plurality of guide wheels are installed in linear array on the long strip plate through their rotating shafts, and the strip-shaped limiting plate is installed at one end of the rotating shaft of the guide wheel;

[0017] A second spring hole for accommodating the horizontal telescopic spring is formed in the open slot frame and matches the first spring hole;

[0018] The first rolling assembly is movably installed on the four first guide rods of the first conveying bracket assembly through its flange linear bearings, two said first double-shaft air cylinders are installed in the left through hole and the right through hole of the top surface of the first conveying bracket assembly, and the ends of the piston rods of the two first double-shaft air cylinders are connected to the first rolling assembly;

[0019] The measuring rolling component comprises eight said first rolling assemblies, eight said first conveying bracket assemblies, a square lower guide rod, a square upper guide rod, a second photoelectric switch, a third photoelectric switch, and two eighth double-shaft air cylinders;

[0020] The square upper guide rod is installed on the top surface of the eighth rolling assembly through a T-shaped seat, and the square lower guide rod is correspondingly installed on the eighth conveying bracket assembly through a T-shaped seat,

[0021] The emitting ends of the second photoelectric switch and the third photoelectric switch are installed on the square upper guide rod, and the receiving ends of the second photoelectric switch and the third photoelectric switch are correspondingly installed on the square lower guide rod.

[0022] Further, the feeding component comprises a feeding drive assembly and a steel coil assembly.

[0023] The steel coil assembly is supported between the left rotating shaft and the right rotating shaft of the feeding drive assembly.

[0024] Further, the feeding drive assembly comprises a feeding support, a feeding motor, four seat bearings, a left rotating shaft, a left clutch, a right clutch and a right rotating shaft.

[0025] The feeding motor is installed on one side of the top surface of the feeding support through a motor mounting frame, the left rotating shaft is installed on one side of the top surface of the feeding support in line with the output shaft of the feeding motor through two seat bearings, and the output shaft of the feeding motor and the left rotating shaft are drivingly connected through a shaft coupling, and the left clutch is movably sleeved on the left rotating shaft.

[0026] The right rotating shaft is installed on the other side of the top surface of the feeding support in line with the left rotating shaft through two seat bearings, and the right clutch is sleeved on the side of the right rotating shaft facing the left clutch.

[0027] An open slot is formed at one end of the right rotating shaft, and a protruding key is formed on the right clutch, and the protruding key formed on the right clutch is clamped into the open slot formed on the right rotating shaft.

[0028] The structure of the left rotating shaft and the left clutch is the same as that of the right rotating shaft and the right clutch.

[0029] Further, the steel coil assembly comprises a steel coil and a central rotating shaft, square protruding shafts are formed at both ends of the central rotating shaft, and the steel coil is wound around the central rotating shaft.

[0030] Further, the cutting machine tool comprises a No. 3 tool body, a T-shaped lower blade clamp, a lower blade, a No. 3 guide rod, a No. 3 linear bearing, a No. 3 hydraulic cylinder, a T-shaped upper blade clamp and an upper blade.

[0031] The No. 3 hydraulic cylinder is installed on the top surface of the No. 3 tool body, the hydraulic rod of the No. 3 hydraulic cylinder passes through the middle through hole formed on the top surface of the No. 3 tool body, and two No. 3 linear bearings are respectively installed on the top surface of the No. 3 tool body.

[0032] The No. 3 guide rod passes through the No. 3 linear bearing, the flange end of the No. 3 guide rod is fixedly connected with the T-shaped upper blade clamp, the T-shaped upper blade clamp is connected with the end of the hydraulic rod of the No. 3 hydraulic cylinder, the upper blade is clamped in the T-shaped upper blade clamp, the T-shaped lower blade clamp is installed on the workbench of the No. 3 tool body, and the lower blade is clamped in the T-shaped lower blade clamp.

[0033] Further, the front-end punching machine tool comprises a No. 5 tool body, a No. 5 lower die, a No. 5 upper die mounting plate, a No. 5 linear bearing, a No. 5 guide rod, a No. 5 hydraulic cylinder and a No. 1 photoelectric switch.

[0034] The fifth hydraulic cylinder is installed on the top surface of the fifth bed body, the hydraulic rod of which passes through the middle through hole on the top surface of the fifth bed body, four fifth linear bearings are installed on the top surface of the fifth bed body in linear array, the fifth guide rod passes through the fifth linear bearing, the flange end of which is fixedly connected with the fifth upper die mounting plate, the fifth upper die mounting plate is connected with the end of the hydraulic rod of the fifth hydraulic cylinder, the fifth upper die is arranged in the fifth upper die mounting plate, and the fifth lower die is installed on the workbench of the fifth bed body;

[0035] The first photoelectric switch is installed in the groove on the side of the fifth lower die.

[0036] Further, the rear-end punching machine tool comprises a seventh bed body, a seventh lower die, a seventh upper die mounting plate, a seventh linear bearing, a seventh guide rod and a seventh hydraulic cylinder.

[0037] The seventh hydraulic cylinder is installed on the top surface of the seventh bed body, the hydraulic rod of which passes through the middle through hole on the top surface of the seventh bed body, four seventh linear bearings are installed on the top surface of the seventh bed body in linear array, the seventh guide rod passes through the seventh linear bearing, the flange end of which is fixedly connected with the seventh upper die mounting plate, the seventh upper die mounting plate is connected with the end of the hydraulic rod of the seventh hydraulic cylinder, the seventh upper die is arranged in the seventh upper die mounting plate, and the seventh lower die is installed on the workbench of the seventh bed body.

[0038] The seventh lower die and the seventh upper die are structured according to the shape, number and position of the rear-end hole of the T-shaped hollow elevator guide rail.

[0039] Further, the structure and working principle of the eighth rolling feeding assembly and the eighth rolling feeding support assembly are the same as those of the first rolling feeding assembly and the first conveying support assembly of the first rolling feeding component.

[0040] The eighth rolling feeding assembly is movably installed on the guide rod of the eighth rolling feeding support assembly through the linear bearing, and two eighth double-shaft air cylinders are installed in the left through hole and the right through hole on the top surface of the eighth rolling feeding support assembly.

[0041] The ends of the piston rods of the two eighth double-shaft air cylinders are connected with the eighth rolling feeding assembly.

[0042] Further, the second rolling feeding component and the third rolling feeding component have the same mechanism as the first rolling feeding component.

[0043] Further, the punching method of the T-shaped hollow elevator guide rail blank punching production line has the following specific operation steps:

[0044] 1) the coil steel is sent out from the feeding component, flattened by the first roller feeding component, and then fed to the cutting machine;

[0045] 2) the flattened coil steel is fed to the front punching machine by the second roller feeding component, and the front hole is punched at the front end of the flattened coil steel by the front punching machine;

[0046] 3) the coil steel with the punched front hole is continuously fed by the third roller feeding component, and then fed to the measuring roller feeding component through the rear punching machine;

[0047] 4) the coil steel with the punched front hole is continuously fed by the measuring roller feeding component, and when the second photoelectric switch detects the coil steel, the cutting machine is informed to cut the coil steel;

[0048] 5) the coil steel after cutting is continuously fed by the measuring roller feeding component, and when the third photoelectric switch detects the coil steel, the rear punching machine is informed to punch the rear hole at the rear end of the coil steel, thus forming the T-shaped hollow elevator guide rail blank;

[0049] 6) the T-shaped hollow elevator guide rail blank is continuously fed by the measuring roller feeding component and moved to the next station.

[0050] Advantages: compared with the prior art, the present application has the following characteristics: 1) the flattening, feeding, cutting and punching of the T-shaped hollow elevator guide rail blank are fully automated; 2) during the feeding of the T-shaped hollow elevator guide rail blank by the roller, the roller is pressed on the T-shaped hollow elevator guide rail blank with constant pressure, which avoids the unsmooth feeding caused by the small thickness of the coil steel and the damage of the coil steel caused by the large thickness of the coil steel, and even the coil steel cannot be fed; 3) during the feeding of the T-shaped hollow elevator guide rail blank by the roller, the two sets of guide wheels are always clamped on the coil steel at the middle position of the feeding component under the action of the spring force, which avoids the inclination during the feeding caused by the small width of the coil steel and the difficulty in feeding caused by the large width of the coil steel; 4) by changing the positions of the emitting ends of the second photoelectric switch and the third photoelectric switch installed on the square upper guide rod and correspondingly changing the positions of the receiving ends of the second photoelectric switch and the third photoelectric switch installed on the square lower guide rod, the processing of T-shaped hollow elevator guide rails with different lengths can be adapted, and the application range of the flow line is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 is a structure diagram of the feeding component in the present application;

[0052] Figure 2 is a structure diagram of the feeding component in the present application;

[0053] Figure 3 is a structure diagram of the feeding driving assembly in the present application;

[0054] Figure 4 is Figure 3 enlarged view of A in FIG. 1;

[0055] Figure 5 is a structural schematic diagram of a steel coil assembly in the present application;

[0056] Figure 6 is a structural schematic diagram of a first roller assembly in the present application;

[0057] Figure 7 is a structural schematic diagram of a first roller assembly in the present application;

[0058] Figure 8 is a structural schematic diagram of a first roller assembly in the present application;

[0059] Figure 9 is Figure 8 enlarged view of A in FIG. 3;

[0060] Figure 10 is a structural schematic diagram of a first roller assembly in the present application;

[0061] Figure 11 is a structural schematic diagram of a first roller assembly in the present application;

[0062] Figure 12 is a structural schematic diagram of a first roller assembly in the present application;

[0063] Figure 13 is a structural schematic diagram of a first roller assembly in the present application;

[0064] Figure 14 is a structural schematic diagram of a first roller assembly in the present application;

[0065] Figure 15 is a structural schematic diagram of a first roller assembly in the present application;

[0066] Figure 16 is a structural schematic diagram of a first roller assembly in the present application;

[0067] Figure 17 is Figure 16 enlarged view of A in FIG. 5;

[0068] Figure 18 is a structural schematic diagram of a first roller assembly in the present application;

[0069] Figure 19 is a structural schematic diagram of a first roller assembly in the present application;

[0070] In the figure: 1 is a feeding component, 11 is a feeding drive assembly, 111 is a feeding support, 112 is a feeding motor, 113 is a bearing with seat, 115 is a left rotating shaft, 116 is a left clutch, 117 is a right clutch, 117.1 is a protruding key, 118 is a right rotating shaft, 118.1 is an open slot;

[0071] 12 is a steel coil assembly, 121 is a steel coil, 122 is a central rotating shaft, 122.1 is a square protruding shaft;

[0072] 2 is a first rolling component, 21 is a first rolling assembly, 211 is a flange linear bearing, 212 is a rolling plate, 213 is a roller, 214 is a double chain wheel, 215 is a rolling motor, 216 is a pressing rod, 217 is a first bearing with seat;

[0073] 22 is a first conveying support assembly, 221 is a first support, 221.1 is a left through hole, 221.2 is a left recess, 221.3 is a first spring hole, 221.4 is a right recess, 221.5 is a right through hole;

[0074] 222 is a first guide rod;

[0075] 223 is a guide wheel set, 2231 is an open slot frame, 2231.1 is a second spring hole, 2232 is a vertical telescopic spring, 2233 is a long strip plate, 2234 is a guide wheel, 2235 is a strip limiting plate;

[0076] 224 is a horizontal telescopic spring;

[0077] 23 is a first double-shaft air cylinder;

[0078] 3 is a cutting machine, 31 is a third bed body, 32 is a T-shaped lower blade clamp, 33 is a lower blade, 34 is a third guide rod, 35 is a third linear bearing, 36 is a third hydraulic cylinder, 37 is a T-shaped upper blade clamp, 38 is an upper blade;

[0079] 4 is a second rolling component;

[0080] 5 is a front-end punching machine, 51 is a fifth bed body, 52 is a fifth lower die, 53 is a fifth upper die mounting plate, 54 is a fifth linear bearing, 55 is a fifth guide rod, 56 is a fifth hydraulic cylinder, 57 is a first photoelectric switch;

[0081] 6 is a third rolling component;

[0082] 7 is a rear-end punching machine;

[0083] 71 is bed number 7, 52 is lower mold number 7, 53 is upper mold number 7 mounting plate, 54 is linear bearing number 7, 55 is guide rod number 7, 56 is hydraulic cylinder number 7; 8 is measuring roller conveyor component, 81 is roller conveyor assembly number 8, 82 is roller conveyor support assembly number 8, 83 is square lower guide rod, 84 is square upper guide rod, 85 is photoelectric switch number 2, 86 is photoelectric switch number 3, and 87 is dual-axis cylinder number 8.

[0084] 9 is the blank of T-shaped hollow elevator guide rail. Detailed Implementation

[0085] To more clearly illustrate the technical solution of the present invention, the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings:

[0086] like Figure 1 As shown, the T-shaped hollow elevator guide rail blank punching production line of the present invention includes a feeding component 1, a first roller conveyor component 2, a cutting machine tool 3, a second roller conveyor component 4, a front punching machine tool 5, a third roller conveyor component 6, a rear punching machine tool 7, and a measuring roller conveyor component 8.

[0087] The feeding component 1, the first conveying component 2, the cutting machine tool 3, the second conveying component 4, the front punching machine tool 5, the third conveying component 6, the rear punching machine tool 7, and the measuring conveying component 8 are arranged in a straight line.

[0088] like Figure 2 As shown, the feeding component 1 includes a feeding drive assembly 11 and a coil assembly 12;

[0089] The coiled steel assembly 12 is supported on the feeding drive assembly 11. Driven by the feeding drive assembly 11, the coiled steel assembly 12 rotates around its central axis and feeds out the coiled steel wound on the central axis.

[0090] like Figures 3-4 As shown, the feeding drive assembly 11 includes a feeding bracket 111, a feeding motor 112, a bearing 113, a left rotating shaft 115, a left clutch 116, a right clutch 117, and a right rotating shaft 118.

[0091] The feeding motor 112 is mounted on one side of the top surface of the feeding bracket 111 via a motor mounting bracket. The left rotating shaft 115 is mounted on one side of the top surface of the feeding bracket 111 in a straight line with the output shaft of the feeding motor 112 via two seated bearings. The output shaft of the feeding motor 112 and the left rotating shaft 115 are connected by a coupling. The left clutch 116 is movably mounted on the left rotating shaft 115. The right rotating shaft 118 is mounted on the other side of the top surface of the feeding bracket 111 in a straight line with the left rotating shaft 115 via two seated bearings 113.

[0092] An opening slot 118.1 is formed at one end of the right rotating shaft 118, and a protruding key 117.1 is formed on the right clutch 117, which is clamped into the opening slot 118.1 of the right rotating shaft 118, so that the right clutch 117 is movably sleeved on the right rotating shaft 118. The left rotating shaft 115 and the left clutch 116 are respectively the same as the right rotating shaft 118 and the right clutch 117.

[0093] As shown in Figure 5 , the steel coil assembly 12 comprises a steel coil 121 and a central rotating shaft 122, and square protruding shafts 122.1 are arranged at both ends of the central rotating shaft 122, and the steel coil 121 is wound on the central rotating shaft 122.

[0094] When it is needed to install the steel coil assembly 12 on the feeding drive assembly 11, first, the left clutch 116 and the right clutch 117 are moved outward along the left rotating shaft 115 and the right rotating shaft 118 respectively, then the square protruding shafts 122.1 at both ends of the central rotating shaft 122 of the steel coil assembly 12 are clamped into the opening slots 118.1 of the left rotating shaft 115 and the right rotating shaft 118, and then the left clutch 116 and the right clutch 117 are moved inward along the left rotating shaft 115 and the right rotating shaft 118 respectively, so that the central rotating shaft 122 of the steel coil assembly 12 is drivingly connected with the left rotating shaft 115 and the right rotating shaft 118.

[0095] As shown in Figure 6 , the first rolling feeding component 2 comprises a first rolling feeding assembly 21, a first conveying bracket assembly 22, and a first double-shaft air cylinder 23.

[0096] The first rolling feeding assembly 21 is movably installed on a first guide rod 222 of the first conveying bracket assembly 22 through a flange linear bearing 211, two first double-shaft air cylinders 23 are respectively installed in left and right through holes 221.1 and 221.5 on the top surface of the first conveying bracket assembly 22, and the ends of the piston rods of the two first double-shaft air cylinders 23 are connected with the first rolling feeding assembly 21, so that when the piston rods of the two first double-shaft air cylinders 23 are extended or retracted, the first rolling feeding assembly 21 is driven to move up and down along the first guide rod 222.

[0097] As shown in Figures 7-9 , the first rolling feeding assembly 21 comprises the flange linear bearing 211, a rolling feeding flat plate 212, a roller 213, a double chain wheel 214, a rolling feeding motor 215, a pressing rod 216, and a first bearing with seat.

[0098] Several said rollers 213 are installed on the bottom surface of the rolling plate 212 in linear array through a No. 1 belt bearing 217, a double chain wheel 214 is installed on one end of the roller 213, the rolling motor 215 is installed on the top surface of the rolling plate 212, a chain wheel is installed on the output shaft of the rolling motor 215, the double chain wheel 214 installed on one end of the roller 213 is connected through a chain, the chain wheel installed on the output shaft of the rolling motor 215 is connected with the double chain wheel 214 on one of the rollers 213 through a chain, when the output shaft of the rolling motor 215 rotates, the roller 213 is driven to rotate through chain transmission. Four flange type linear bearings 211 are installed at the four corners of the rolling plate 212 in linear array, four pressing rods 216 are installed on the bottom surface of the rolling plate 212 in linear array.

[0099] As shown in Figures 10-12 , the No. 1 conveying bracket assembly 22 includes a No. 1 bracket 221, a No. 1 guide rod 222, and a guide wheel set 223.

[0100] Four said No. 1 guide rods 222 are installed on the top surface of the No. 1 bracket 221 in linear array, two sets of said guide wheel sets 223 are movably installed in the left groove 221.2 of the No. 1 bracket 221 through horizontal extension springs 224.

[0101] The horizontal extension spring 224 installed between the No. 1 spring hole 221.3 and the No. 2 spring hole 2231.1 drives the guide wheel set 223 to move horizontally in the left groove 221.2 of the No. 1 bracket 221, so as to change the distance between the two sets of guide wheel sets 223 to adapt to the rolling of the steel coil with different widths.

[0102] As shown in Figures 13-14 , the guide wheel set 223 includes an open slot frame 2231, a vertical extension spring 2232, a long strip plate 2233, a guide wheel 2234, and a strip limiting plate 2235.

[0103] The long strip plate 2233 is movably installed in the open slot frame 2231 through the vertical extension spring 2232, several said guide wheels 2234 are installed on the long strip plate 2233 in linear array through their rotating shafts, and the strip limiting plate 2235 is installed on one end of the rotating shaft of the guide wheel 2234. When the vertical extension spring 2232 is compressed, the long strip plate 2233 moves downward, thereby driving the guide wheel 2234 installed thereon and the strip limiting plate 2235 installed on one end of the rotating shaft of the guide wheel 2234 to move downward, changing the distance between the lower surface of the strip limiting plate 2235 and the top surface of the No. 2 bracket 221 to adapt to the conveying of the steel coil with different thicknesses.

[0104] When the steel coil sent by the feeding component 1 reaches the first rolling component 2, the piston rods of the two first double-shaft air cylinders 23 are retracted, driving the first rolling assembly 21 to move downward along the first guide rod 222, and the roller 213 is pressed on the steel coil at a constant pressure. Meanwhile, the four pressing rods 216 installed on the bottom surface of the rolling plate 212 move downward, pressing the guide wheel assembly 223, and the guide wheel assembly 223 moves downward, so that the lower surface of the strip-shaped limiting plate 2235 has a spacing equal to the thickness of the steel coil from the top surface of the second support 221. Under the combined action of the pushing force of the guide wheel assembly 223 on both sides of the steel coil and the spring force of the horizontal extension spring 224, the spacing of the two sets of guide wheel assemblies 223 is self-adaptively adjusted according to the width of the steel coil, so that the steel coil is reliably clamped between the two sets of guide wheel assemblies 223. The rolling motor 215 is started to reliably and stably roll the steel coil to the downstream of the assembly line.

[0105] As shown in Figure 15 , the cutting machine 3 comprises a third bed body 31, a T-shaped lower blade clamp 32, a lower blade 33, a third guide rod 34, a third linear bearing 35, a third hydraulic cylinder 36, a T-shaped upper blade clamp 37, and an upper blade 38.

[0106] The third hydraulic cylinder 36 is installed on the top surface of the third bed body 31, and the hydraulic rod thereof passes through the middle through hole in the top surface of the third bed body 31. Two third linear bearings 35 are installed on the top surface of the third bed body 31. The third guide rod 34 passes through the third linear bearing 35, and the flange end thereof is fixedly connected with the T-shaped upper blade clamp 37. The T-shaped upper blade clamp 37 is connected with the end of the hydraulic rod of the third hydraulic cylinder 36. The upper blade 38 is clamped in the T-shaped upper blade clamp 37. The T-shaped lower blade clamp 32 is installed on the workbench of the third bed body 31. The lower blade 33 is clamped in the T-shaped lower blade clamp 32. When the hydraulic rod of the third hydraulic cylinder 36 is extended, the T-shaped upper blade clamp 37 and the upper blade 38 clamped therein are driven to move downward, thereby cutting the steel coil.

[0107] As shown in Figure 16 , the front-end punching machine 5 comprises a fifth bed body 51, a fifth lower die 52, a fifth upper die mounting plate 53, a fifth linear bearing 54, a fifth guide rod 55, a fifth hydraulic cylinder 56, and a first photoelectric switch 57.

[0108] The No. 5 hydraulic cylinder 56 is installed on the top surface of the No. 5 bed body 51, and its hydraulic rod passes through the middle through hole on the top surface of the No. 5 bed body 51. Four No. 5 linear bearings 54 are installed in linear array on the top surface of the No. 5 bed body 51. The No. 5 guide rod 55 passes through the No. 5 linear bearing 54, and its flange end is fixedly connected with the No. 5 upper die mounting plate 53. The No. 5 upper die mounting plate 53 is simultaneously connected with the end of the hydraulic rod of the No. 5 hydraulic cylinder 56. The No. 5 upper die is installed in the No. 5 upper die mounting plate 53 (omitted in the figure). The No. 5 lower die 52 is installed on the workbench of the No. 5 bed body 51. The No. 5 upper die and the No. 5 lower die 52 are designed and manufactured according to the shape, number and position of the front end hole of the T-shaped hollow elevator guide rail blank.

[0109] As shown in Figure 17 , the No. 1 photoelectric switch 57 is installed in the groove on one side of the No. 5 lower die 52. When the No. 1 photoelectric switch 57 detects that the steel coil moves to the front end punching machine tool 5, the hydraulic rod of the No. 5 hydraulic cylinder 56 is extended, driving the No. 5 upper die mounting plate 53 and the No. 5 upper die installed therein to move downward, so as to punch the front end hole at the front end of the steel coil.

[0110] As shown in Figure 18 , the rear end punching machine tool 7 includes a No. 7 bed body 71, a No. 7 lower die 72, a No. 7 upper die mounting plate 73, a No. 7 linear bearing 74, a No. 7 guide rod 75 and a No. 7 hydraulic cylinder 76.

[0111] The No. 7 hydraulic cylinder 76 is installed on the top surface of the No. 7 bed body 71, and its hydraulic rod passes through the middle through hole on the top surface of the No. 7 bed body 71. Four No. 7 linear bearings 74 are installed in linear array on the top surface of the No. 7 bed body 71. The No. 7 guide rod 75 passes through the No. 7 linear bearing 74, and its flange end is fixedly connected with the No. 7 upper die mounting plate 73. The No. 7 upper die mounting plate 73 is simultaneously connected with the end of the hydraulic rod of the No. 7 hydraulic cylinder 76. The No. 7 upper die is arranged in the No. 7 upper die mounting plate 73 (omitted in the figure). The No. 7 lower die 72 is installed on the workbench of the No. 7 bed body 71.

[0112] The No. 7 upper die and the No. 7 lower die 72 are designed and manufactured according to the shape, number and position of the rear end hole of the T-shaped hollow elevator guide rail blank.

[0113] As shown in Figure 19 , the measuring and rolling component 8 includes a No. 8 rolling assembly 81, a No. 8 rolling support assembly 82, a square lower guide rod 83, a square upper guide rod 84, a No. 2 photoelectric switch 85, a No. 3 photoelectric switch 86 and a No. 8 double-shaft air cylinder 87.

[0114] The structure and working principle of the No. 8 rolling assembly 81 and the No. 8 rolling support assembly 82 are the same as those of the No. 1 rolling component 2.

[0115] The eighth rolling assembly 81 is movably installed on the guide rod of the eighth rolling support assembly 82 through its linear bearing, two eighth double-shaft air cylinders 87 are respectively installed in the left and right through holes on the top surface of the eighth rolling support assembly 82, the ends of the piston rods of the eighth double-shaft air cylinders 87 are connected with the eighth rolling assembly 81, when the piston rods of the eighth double-shaft air cylinders 87 are extended or retracted, the eighth rolling assembly 81 is driven to move up and down along the guide rod;

[0116] The square upper guide rod 84 is installed on the top surface of the eighth rolling assembly 81 through a T-shaped seat, the square lower guide rod 83 is correspondingly installed on the eighth rolling support assembly 82 through a T-shaped seat, the emitting ends of the second photoelectric switch 85 and the third photoelectric switch 86 are installed on the square upper guide rod 84, and the receiving ends of the second photoelectric switch 85 and the third photoelectric switch 86 are correspondingly installed on the square lower guide rod 83, when the second photoelectric switch 85 detects the steel coil, it informs the cutting machine tool 3 to act and cut the steel coil, when the third photoelectric switch 87 detects the steel coil, it informs the rear-end punching machine tool to work and punch a hole at the rear end of the steel coil;

[0117] By changing the positions of the emitting ends of the second photoelectric switch 85 and the third photoelectric switch 86 installed on the square upper guide rod 84, and correspondingly changing the positions of the receiving ends of the second photoelectric switch 85 and the third photoelectric switch 86 installed on the square lower guide rod 84, the processing of T-shaped hollow elevator blank with different lengths can be adapted.

[0118] In addition, the second rolling part 4 and the third rolling part 6 have the same mechanism as the first rolling part 2.

[0119] Further, the working process of the T-shaped hollow elevator guide rail blank punching production line device is as follows:

[0120] 1) After the steel coil is sent out from the feeding part 1, it is flattened by the first rolling part 2 and rolled to the cutting machine tool 3;

[0121] 2) The second rolling part 4 rolls the flattened steel coil to the front-end punching machine tool 5, and the front-end punching machine tool 5 punches a front-end hole at the front end of the flattened steel coil;

[0122] 3) The third rolling part 6 continues to roll the steel coil with the completed front-end punching, passes through the rear-end punching machine tool 7, and reaches the measuring rolling part 8;

[0123] 4) The measuring rolling part 8 continues to roll the steel coil with the completed front-end punching, when the second photoelectric switch 85 detects the steel coil, it informs the cutting machine tool 3 to act and cut the steel coil;

[0124] 5) The measuring and rolling component 8 continues to roll the cut-off coil steel, and when the No. 3 photoelectric switch 87 detects the coil steel, it informs the rear-end punching machine tool 7 to work, and punches a rear-end hole at the rear end of the coil steel. Thus, the T-shaped hollow elevator guide rail blank 9 is formed;

[0125] 6) The T-shaped hollow elevator guide rail blank 9 continues to move to the next station under the rolling of the measuring and rolling component 8.

Claims

1. A production line for punching T-shaped hollow elevator guide rail blanks, characterized in that, It includes a feeding component (1), a first roller conveyor (2), a cutting machine (3), a second roller conveyor (4), a front punching machine (5), a third roller conveyor (6), a rear punching machine (7), and a measuring roller conveyor (8) that are interconnected; the feeding component (1), the first roller conveyor (2), the cutting machine (3), the second roller conveyor (4), the front punching machine (5), the third roller conveyor (6), the rear punching machine (7), and the measuring roller conveyor (8) are arranged in a straight line; The first rolling component (2) includes, from top to bottom, a first rolling assembly (21), a first conveying support assembly (22), and two first twin-axis cylinders (23) that are connected to each other. The first roll conveyor assembly (21) includes four flanged linear bearings (211), a roll conveyor plate (212), several rollers (213), a double sprocket (214), a roll conveyor motor (215), four pressure rods (216), and a first seated bearing (217). Several rollers (213) are evenly distributed in a linear array on the bottom surface of the conveying plate (212) via a first bearing (217). A double sprocket (214) is installed at one end of each roller (213), and the conveying motor (215) is installed on the top surface of the conveying plate (212). A sprocket is mounted on the output shaft of the roller motor (215). The double sprockets (214) mounted on one end of the roller (213) are connected in pairs by a chain. The sprocket mounted on the output shaft of the roller motor (215) is connected to the double sprocket (214) on one of the rollers (213) by a chain. The four flanged linear bearings (211) are mounted in a linear array at the four corners of the rolling plate (212), and the four pressure bars (216) are mounted in a linear array on the bottom surface of the rolling plate (212). The first conveying support assembly (22) includes a first support (221), four first guide rods (222), two sets of guide wheel groups (223) and at least four horizontal telescopic springs (224). A left through hole (221.1), a left groove (221.2), a right groove (221.4), and a right through hole (221.5) are respectively provided on the first bracket (221). At least two first spring holes (221.3) for accommodating horizontal telescopic springs (224) are provided in both the left groove (221.2) and the right groove (221.4). The two sets of guide wheel assemblies (223) are respectively movably installed in the left groove (221.2) and right groove (221.4) of the first bracket (221) by at least two horizontal telescopic springs (224); The four guide rods (222) are mounted in a linear array on the top surface of the bracket (221); The guide wheel assembly (223) includes an open slot frame (2231), a vertical telescopic spring (2232), a long strip plate (2233), several guide wheels (2234), and a strip-shaped limiting plate (2235). The long strip (2233) is installed in the opening slot frame (2231) by means of a vertical telescopic spring (2232), and a number of guide wheels (2234) are installed on the long strip (2233) in a linear array through their rotating shafts. The strip-shaped limiting plate (2235) is installed at one end of the rotating shaft of the guide wheel (2234). A second spring hole (2231.1) is provided on the opening slot frame (2231) to accommodate a horizontal telescopic spring (224), which is compatible with the first spring hole (221.3). The first rolling assembly (21) is mounted vertically on the four first guide rods (222) of the first conveying bracket assembly (22) via its flange linear bearing (211). The two first dual-axis cylinders (23) are respectively installed in the left through hole (221.1) and the right through hole (221.5) on the top surface of the first conveying bracket assembly (22). The ends of the piston rods of the two first dual-axis cylinders (23) are connected to the first rolling assembly (21). The measuring roll-feed component (8) includes an eighth roll-feed assembly (81), an eighth roll-feed bracket assembly (82), a square lower guide rod (83), a square upper guide rod (84), a second photoelectric switch (85), a third photoelectric switch (86), and two eighth dual-axis cylinders (87). The square upper guide rod (84) is mounted on the top surface of the No. 8 roller conveyor assembly (81) via a T-shaped seat, and the square lower guide rod (83) is correspondingly mounted on the No. 8 roller conveyor bracket assembly (82) via a T-shaped seat. The transmitting ends of the second photoelectric switch (85) and the third photoelectric switch (86) are mounted on the square upper guide rod (84), and the receiving ends of the second photoelectric switch (85) and the third photoelectric switch (86) are correspondingly mounted on the square lower guide rod (83).

2. The T-shaped hollow elevator guide rail blank punching production line according to claim 1, characterized in that, The feeding component (1) includes a feeding drive assembly (11) and a coil assembly (12). The coil assembly (12) is supported between the left rotating shaft (115) and the right rotating shaft (118) of the feed drive assembly (11).

3. The T-shaped hollow elevator guide rail blank punching production line according to claim 2, characterized in that, The feeding drive assembly (11) includes a feeding bracket (111), a feeding motor (112), four bearings with seats (113), a left rotating shaft (115), a left clutch (116), a right clutch (117), and a right rotating shaft (118). The feeding motor (112) is mounted on one side of the top surface of the feeding bracket (111) via a motor mounting bracket. The left rotating shaft (115) is mounted on one side of the top surface of the feeding bracket (111) in a straight line with the output shaft of the feeding motor (112) via two seated bearings (113). The output shaft of the feeding motor (112) and the left rotating shaft (115) are connected by a coupling. The left clutch (116) is movably mounted on the left rotating shaft (115). The right rotating shaft (118) is installed on the other side of the top surface of the feeding bracket (111) in a straight line with the left rotating shaft (115) via two seated bearings (113). A right clutch (117) is fitted on the side of the right rotating shaft (118) facing the left clutch (116). An opening groove (118.1) is provided at one end of the right rotating shaft (118), and a protruding key (117.1) is provided on the right clutch (117). The protruding key (117.1) on the right clutch (117) is inserted into the opening groove (118.1) on the right rotating shaft (118). The structures of the left pivot (115) and the left clutch (116) are the same as those of the right pivot (118) and the right clutch (117), respectively.

4. The T-shaped hollow elevator guide rail blank punching production line according to claim 2, characterized in that, The coiled steel assembly (12) includes a coiled steel (121) and a central rotating shaft (122). Square convex shafts (122.1) are respectively provided at both ends of the central rotating shaft (122), and the coiled steel (121) is wound on the central rotating shaft (122).

5. The T-shaped hollow elevator guide rail blank punching production line according to claim 1, characterized in that, The cutting machine tool (3) includes a No. 3 bed (31), a T-shaped lower blade holder (32), a lower blade (33), a No. 3 guide rod (34), a No. 3 linear bearing (35), a No. 3 hydraulic cylinder (36), a T-shaped upper blade holder (37), and an upper blade (38). The No. 3 hydraulic cylinder (36) is installed on the top surface of the No. 3 bed (31). The hydraulic rod of the No. 3 hydraulic cylinder (36) passes through the middle through hole opened on the top surface of the No. 3 bed (31). Two No. 3 linear bearings (35) are installed on the top surface of the No. 3 bed (31). The No. 3 guide rod (34) passes through the No. 3 linear bearing (35), and its flange end is fixedly connected to the T-shaped upper blade clamp (37). The T-shaped upper blade clamp (37) is also connected to the end of the hydraulic rod of the No. 3 hydraulic cylinder (36). The upper blade (38) is clamped in the T-shaped upper blade clamp (37). The T-shaped lower blade clamp (32) is installed on the worktable of the No. 3 bed (31). The lower blade (33) is clamped in the T-shaped lower blade clamp (32).

6. The T-shaped hollow elevator guide rail blank punching production line according to claim 1, characterized in that, The front punching machine (5) includes a No. 5 bed (51), a No. 5 lower die (52), a No. 5 upper die mounting plate (53), a No. 5 linear bearing (54), a No. 5 guide rod (55), a No. 5 hydraulic cylinder (56), and a No. 1 photoelectric switch (57). The No. 5 hydraulic cylinder (56) is installed on the top surface of the No. 5 bed (51), and its hydraulic rod passes through the central through hole opened on the top surface of the No. 5 bed (51). Four No. 5 linear bearings (54) are installed in a linear array on the top surface of the No. 5 bed (51). The No. 5 guide rod (55) passes through the No. 5 linear bearing (54), and its flange end is fixedly connected to the No. 5 upper mold mounting plate (53). The No. 5 upper mold mounting plate (53) is also connected to the end of the hydraulic rod of the No. 5 hydraulic cylinder (56). The No. 5 upper mold is placed in the No. 5 upper mold mounting plate (53). The No. 5 lower mold (52) is installed on the worktable of the No. 5 bed (51). The No. 5 lower mold (52) and the No. 5 upper mold are constructed according to the shape, number and position of the front end hole of the T-shaped hollow elevator guide rail. The No. 1 photoelectric switch (57) is installed in a groove opened on one side of the No. 5 lower mold (52).

7. A T-shaped hollow elevator guide rail blank punching production line according to claim 1, characterized in that, The rear punching machine (7) includes a No. 7 bed (71), a No. 7 lower die (72), a No. 7 upper die mounting plate (73), a No. 7 linear bearing (74), a No. 7 guide rod (75), and a No. 7 hydraulic cylinder (76). The No. 7 hydraulic cylinder (76) is installed on the top surface of the No. 7 bed (71), and its hydraulic rod passes through the middle through hole opened on the top surface of the No. 7 bed (71). Four No. 7 linear bearings (74) are installed in a linear array on the top surface of the No. 7 bed (71). The No. 7 guide rod (75) passes through the No. 7 linear bearing (74), and its flange end is fixedly connected to the No. 7 upper mold mounting plate (73). The No. 7 upper mold mounting plate (73) is also connected to the end of the hydraulic rod of the No. 7 hydraulic cylinder (76). The No. 7 upper mold is placed in the No. 7 upper mold mounting plate (73). The No. 7 lower mold (72) is installed on the worktable of the No. 7 bed (71). The No. 7 lower mold (72) and the No. 7 upper mold are constructed according to the shape, number and position of the rear end hole of the T-shaped hollow elevator guide rail.

8. A T-shaped hollow elevator guide rail blank punching production line according to claim 1, characterized in that, The structure and working principle of the No. 8 rolling assembly (81) and the No. 8 rolling support assembly (82) are the same as those of the No. 1 rolling assembly (21) and the No. 1 conveying support assembly (22) of the No. 1 rolling component (2); The No. 8 roll conveying assembly (81) is mounted on the guide rod of the No. 8 roll conveying bracket assembly (82) via its linear bearing, and the two No. 8 dual-axis cylinders (87) are respectively installed in the left and right through holes opened on the top surface of the No. 8 roll conveying bracket assembly (82). The ends of the piston rods of the two No. 8 biaxial cylinders (87) are connected to the No. 8 rolling assembly (81).

9. A T-shaped hollow elevator guide rail blank punching production line according to claim 1, characterized in that, The second and third rolling components (4) have the same mechanism as the first rolling component (2).

10. A punching method for a T-shaped hollow elevator guide rail blank punching production line as described in any one of claims 1-9, characterized in that, The specific operating steps are as follows: 1) After the coiled steel is fed out by the feeding component (1), it is flattened and rolled by the first rolling component (2) to the cutting machine (3). 2) The second rolling component (4) rolls the flattened coiled steel to the front punching machine (5), and the front punching machine (5) punches a front hole at the front end of the flattened coiled steel. 3) The No. 3 rolling component (6) continues to roll the coiled steel that has completed the front punching, passes through the rear punching machine (7), and arrives at the measuring rolling component (8). 4) The measuring roller conveyor (8) continues to convey the rolled steel that has completed the front punching. When the second photoelectric switch (85) detects the rolled steel, it notifies the cutting machine (3) to cut the rolled steel. 5) The measuring and rolling component (8) continues to roll the cut steel coil. When the No. 3 photoelectric switch (86) detects the steel coil, it notifies the rear punching machine (7) to work and punch the rear hole at the rear end of the steel coil. Thus, a T-shaped hollow elevator guide rail blank (9) is formed. 6) The T-shaped hollow elevator guide rail blank (9) continues to move to the next station under the rolling of the measuring rolling component (8).

Images