CN111496024A

CN111496024A - Three-roller calendering type arc aluminum plate bending machine

Info

Publication number: CN111496024A
Application number: CN202010348903.4A
Authority: CN
Inventors: 张文勇; 夏广志; 陈繁敏
Original assignee: CHUZHOU YONGTONG TRAFFIC EQUIPMENT CO LTD
Current assignee: CHUZHOU YONGTONG TRAFFIC EQUIPMENT CO LTD
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-08-07

Abstract

The invention relates to the field of aluminum product processing, in particular to a three-roller rolling type arc aluminum plate bending machine which comprises a bottom plate, wherein a mounting frame is welded on one side of the outer wall of the top of the bottom plate, a first air cylinder is installed in the center of the outer wall of the top of the mounting frame through a bolt, an upper compression roller assembly is installed at the output end of the first air cylinder through a bolt, the upper compression roller assembly comprises a support, a baffle is installed on the outer wall of the front side of the support through a bolt, a supporting plate is welded on one side of the outer wall of the top of the support, and a. The bending machine has the beneficial effects that the upper compression rollers with different lengths can be arranged between the bracket and the sliding plate by workers, so that the upper compression rollers can bend different aluminum plates, and the practicability of the bending machine is enhanced; can be so that the delivery sheet pushes aluminum plate two down on the compression roller, be favorable to reducing artificial amount of labour, improve the work efficiency that aluminum plate bent.

Description

Three-roller calendering type arc aluminum plate bending machine

Technical Field

The invention relates to the field of aluminum product processing, in particular to a three-roller calendering type arc aluminum plate bending machine.

Background

The bending machine is important equipment for bending and forming workpieces in the sheet metal industry and is used for pressing sheets into parts in various shapes according to process requirements.

The Chinese patent No. CN102962303B provides a bending machine which has small investment, convenient operation, small mechanical damage to a bent plate and no influence on the subsequent use performance of the bent plate, and the bending machine comprises a base, a power device fixed on the base and a top plate, and is driven by the power device; the first connecting rod and the second connecting rod are respectively and rotatably connected with two ends of the top plate; one end of the third connecting rod is rotatably connected with the first connecting rod, and the other end of the third connecting rod is rotatably connected with the base; one end of the fourth connecting rod is rotatably connected with the second connecting rod, and the other end of the fourth connecting rod is rotatably connected with the base; the periphery of the first roller shaft is provided with a first groove which is rotatably connected with a third connecting rod; the periphery of the second roller shaft is provided with a second groove which is rotatably connected with a fourth connecting rod; the periphery of the third roller shaft is provided with a third groove which is rotatably connected with the base; the periphery of the fourth roller shaft is provided with a fourth groove which is rotatably connected with the base; when the power device drives the top plate, the first groove is driven to be close to/far away from the third groove, and the second groove is driven to be close to/far away from the fourth groove.

Above-mentioned a bender can not change the compression roller at the in-process of bending, only can bend to the aluminum plate of single size, and this bender needs artifical pay-off simultaneously, wastes time and energy for aluminum plate bending efficiency reduces, consequently, the circular arc aluminum plate bender of three-roller calendering formula of need design urgent to solve above-mentioned problem.

Disclosure of Invention

The invention aims to provide a three-roller calendering type arc aluminum plate bending machine, which solves the problem that the conventional bending machine in the background art cannot change a press roller immediately and is time-consuming and labor-consuming in manual feeding.

The technical scheme of the invention is as follows: the utility model provides an arc aluminum plate bender of three-roller calendering formula, includes the bottom plate, bottom plate top outer wall one side welding has the mounting bracket, and mounting bracket top outer wall center department installs first cylinder through the bolt, the output of first cylinder is installed through the bolt and is gone up compression roller assembly, it includes the support to go up compression roller assembly, install the baffle through the bolt on the positive outer wall of support, support top outer wall one side welding has the fagging, and rotates through the bearing between fagging front outer wall one side and the baffle back outer wall one side and be connected with the lead screw, the one end key-type connection that the fagging was kept away from to the lead screw has the runner, the spout has been seted up to support top outer wall one side, and the inside sliding connection of spout has the slide plate that is threaded connection with the lead screw, rotate.

Further, set up mounting groove and the guide way that is upper and lower structural distribution on the mounting bracket front outer wall, and mounting groove one end opening part is pegged graft and is had the cardboard, be connected with the lead screw through the bearing rotation between cardboard one side outer wall and the relative inner wall one side of mounting groove, and the one end key-type connection that the mounting groove inner wall was kept away from to the lead screw has the hand wheel.

Furthermore, the inside sliding connection of mounting groove has two lower compression roller assemblies that are the horizontal structure and distribute, lower compression roller assembly includes the slide, the slide is threaded connection with the lead screw, the slide is sliding connection with the guide way, slide front outer wall one side bottom is rotated through the pivot and is connected with the lower compression roller.

Further, the groove of sliding has been seted up at the positive one side outer wall top of slide, there is the mounting panel slide top through the mounting screw, and installs electric putter through the bolt on the mounting panel top outer wall, electric putter's output has the slider that is sliding connection with the groove of sliding through the mounting screw, and the welding of the positive outer wall one side of slider has the pinch roller.

Further, the feeding frame is welded on two sides of the outer wall of the top of the bottom plate, a first groove is formed in one side of the outer wall of the top of the feeding frame, and guide rollers which are distributed in an equidistant structure are rotatably connected between the inner walls of two opposite sides of the first groove through bearings.

Furthermore, a second groove communicated with the first groove is formed in one side of the outer wall of the top of the feeding frame, a spring is welded on the inner wall of one side of the second groove, a clamping plate is connected to the inside of the second groove in a sliding mode, and one end, far away from the inner wall of the second groove, of the spring is welded at the bottom of the outer wall of one side of the clamping plate.

Further, two pillars are welded on two sides of the outer wall of the top of the bottom plate, a top plate is welded on the top of each pillar, a third cylinder is installed on one side of the outer wall of the top plate through a bolt, and a feeding plate is installed at the output end of the third cylinder through a screw.

Furthermore, the supporting rods are welded on the outer walls of the two sides, close to the mounting frame, of the outer wall of the top of the bottom plate, the compression springs and the supporting seat are sleeved outside the supporting rods, the compression springs are located between the outer wall of the bottom of the supporting seat and the outer wall of the top of the bottom plate, and the rubber pads are bonded on the concave positions of the outer wall of the top of the supporting seat.

Further, a through hole is formed in the bottom of the outer wall of one side of the mounting frame, a second air cylinder is installed on the outer wall of one side of the mounting frame close to the through hole through a screw, and a push plate located inside the through hole is installed at the output end of the second air cylinder through a screw.

Furthermore, the four corners of the outer wall of the bottom plate are welded with supporting legs, and a blanking groove is formed in one side of the outer wall of the bottom plate.

The invention provides a three-roller calendering type arc aluminum plate bending machine through improvement, and compared with the prior art, the three-roller calendering type arc aluminum plate bending machine has the following improvements and advantages:

(1) through the sliding plate who sets up, before bending aluminum plate, the staff can rotate the runner for the lead screw drives the sliding plate and slides inside the spout, thereby makes the staff can install the last compression roller of different length between support and sliding plate, makes to go up the compression roller and can bend different aluminum plates, is favorable to strengthening the practicality of this bender.

(2) Through the third cylinder that sets up, when bending aluminum plate, the staff can put the aluminum plate of treating processing between two pay-off framves, starts the third cylinder afterwards for on the pay-off board pushed two lower compression rollers with aluminum plate, be favorable to reducing artificial amount of labour, improved aluminum plate's the work efficiency of bending.

(3) Through the compression roller that sets up, when bending aluminum plate, the staff can start electric putter for the compression roller compresses tightly aluminum plate, avoids aluminum plate to take place to rock when bending, makes aluminum plate break away from compression roller down.

(4) Through the spring and the splint that set up, when third cylinder promoted the pay-off board pay-off, the spring can make splint centre gripping aluminum plate, makes aluminum plate have good centering nature in the middle of the pay-off in-process simultaneously, and the position of bending is made mistakes when avoiding aluminum plate to bend, reduces the waste of resource.

Drawings

The invention is further explained below with reference to the figures and examples:

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a side view of a partial structure of the present invention;

FIG. 3 is a schematic view of the construction of the upper roll assembly of the present invention;

FIG. 4 is a schematic view of the construction of the lower nip assembly of the present invention;

fig. 5 is a schematic view of the structure of the feeding frame of the present invention.

Description of reference numerals:

1, 2 mounting frames, 3 a first cylinder, 4 mounting grooves, 5 guide grooves, 6 hand wheels, 7 clamping plates, 8 screw rods, 9 pillars, 10 upper press roll assemblies, 11 feeding frames, 12 lower press roll assemblies, 13 supports, 14 upper press rolls, 15 sliding plates, 16 baffle plates, 17 supporting plates, 18 screw rods, 19 sliding grooves, 20 rotating wheels, 21 first grooves, 22 guide rolls, 23 second grooves, 24 springs, 25 clamping plates, 26 sliding plates, 27 lower press rolls, 28 electric push rods, 29 mounting plates, 30 sliding blocks, 31 press rolls, 32 sliding grooves, 33 second cylinders, 34 blanking grooves, 35 supporting seats, 36 supporting rods, 37 compression springs, 38 push plates, 39 top plates, 40 a third cylinder, 41 feeding plates, 42 through holes and 43 supporting legs.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention provides a three-roller rolling type arc aluminum plate bending machine, as shown in figures 1-5, which comprises a base plate 1, wherein a mounting frame 2 is welded on one side of the outer wall of the top of the base plate 1 and is used for mounting main components of the bending machine, a first air cylinder 3 is mounted in the center of the outer wall of the top of the mounting frame 2 through a bolt, the type of the first air cylinder 3 is preferably SC200 250 and is used for lifting an upper press roller 14 so as to bend an aluminum plate, an upper press roller component 10 is mounted at the output end of the first air cylinder 3 through a bolt and is used for bending the aluminum plate under the action of the first air cylinder 3 and a lower press roller component 12, the upper press roller component 10 comprises a bracket 13, a baffle 16 is mounted on the outer wall of the front surface of the bracket 13 through a bolt so as to facilitate a worker to mount a screw 18 and a sliding plate 15, a supporting, and a screw rod 18 is rotatably connected between one side of the outer wall of the front surface of the supporting plate 17 and one side of the outer wall of the back surface of the baffle 16 through a bearing, when the runner 20 rotates, the sliding plate 15 can slide in the sliding groove 19, so that the distance between the sliding plate 15 and the opposite inner wall of the bracket 13 is convenient to change, so as to install the upper press rolls 14 with different sizes, one end of the lead screw 18 far away from the supporting plate 17 is keyed with a rotating wheel 20, is used for a worker to rotate the screw rod 18, one side of the outer wall of the top of the bracket 13 is provided with a sliding groove 19, used for guiding when the screw rod 18 drives the sliding plate 15 to move, and the sliding groove 19 is internally connected with the sliding plate 15 which is in threaded connection with the screw rod 18 in a sliding way, the upper compression roller 14 is used for being installed with the inner wall of the support 13, and is different in size, the upper compression roller 14 is rotatably connected between one side of the outer wall of the back face of the sliding plate 15 and one side of the inner wall of the front face of the support 13 through a bearing and used for being matched with the two lower compression rollers 27 to bend the aluminum plate under the action of the first air cylinder 3.

Further, offer mounting groove 4 and the guide way 5 that is upper and lower structural distribution on the positive outer wall of mounting bracket 2, mounting groove 4 is used for installing lead screw 8, guide way 5 is used for the direction when slide 26 removes, and 4 one end openings of mounting groove are pegged graft and are had cardboard 7, be convenient for the staff at 4 internally mounted lead screws 8 of mounting groove, it is connected with lead screw 8 through the bearing rotation between 7 one side outer walls of cardboard and 4 relative inner wall one sides of mounting groove, lead screw 8 is the lead screw that both ends screw thread is opposite, can drive two slides 26 and slide at mounting

groove

4 and 5 inside of guide way when the staff rotates hand wheel 6, thereby change two distances between the compression roller 27 down, so that bend aluminum plate and be different radians, and the one end key-type connection that 4 inner walls of mounting groove were kept away from to lead screw 8 has hand.

Further, the inside sliding connection of mounting groove 4 has two lower compression roller assemblies 12 that are the horizontal structure and distribute, and lower compression roller assembly 12 includes slide 26 for making lower compression roller 27 can remove under the effect of lead screw 8, slide 26 is threaded connection with lead screw 8, slide 26 and guide way 5 are sliding connection, and slide 26 openly outer wall one side bottom is rotated through the pivot and is connected with lower compression roller 27, is used for bending the aluminum plate with the cooperation of last compression roller 14.

Further, a sliding groove 32 is formed in the top of the outer wall of the front side of the sliding plate 26, and is used for enabling the sliding block 30 to slide, a mounting plate 29 is installed on the top of the sliding plate 26 through a screw, an electric push rod 28 is installed on the outer wall of the top of the mounting plate 29 through a bolt, the type of the electric push rod 28 is preferably SKA-01, and is used for enabling the sliding block 30 to slide and lift in the sliding groove 32, so that the pressing roller 31 presses the aluminum plate, the aluminum plate is prevented from falling off when bent, the sliding block 30 which is in sliding connection with the sliding groove 32 is installed at the output end of the electric push rod 28 through a screw, the pressing roller 31 is installed, the welding of the outer wall of the front side of the.

Further, all welding of bottom plate 1 top outer wall both sides has pay-off frame 11 for the staff places the aluminum plate of treating processing, and has seted up first recess 21 on one side of the 11 top outer walls of pay-off frame for install deflector roll 22, is connected with the deflector roll 22 that is equidistant structure and distributes through the bearing rotation between the relative inner wall in first recess 21 both sides, is used for when pay-off plate 41 promotes aluminum plate, makes aluminum plate slide on pay-off frame 11.

Further, a second groove 23 which is communicated with the first groove 21 is formed in one side of the outer wall of the top of the feeding frame 11, the clamping plate 25 moves at the top of the feeding frame 11, the two clamping plates 25 can clamp aluminum plates with different sizes, a spring 24 is welded on the inner wall of one side of the second groove 23, the clamping plate 25 extrudes the aluminum plate, the aluminum plate is centered, the aluminum plate is bent conveniently, the clamping plate 25 is connected to the inner portion of the second groove 23 in a sliding mode, the aluminum plate is clamped under the action of the spring 24, and one end, away from the inner wall of the second groove 23, of the spring 24 is welded to the bottom of the outer wall of one side of the clamping plate.

Further, two pillars 9 are welded on two sides of the outer wall of the top of the bottom plate 1, and are used for supporting the top plate 39, the top of each pillar 9 is welded with the top plate 39, a third cylinder 40 is installed on one side of the outer wall of the top plate 39 through a bolt, the model of the third cylinder 40 is preferably SC80X200, a feeding plate 41 used for enabling moves, so that an aluminum plate on the feeding frame 11 is pushed onto the lower compression roller 27, automatic feeding of the aluminum plate is achieved, the bending production efficiency of the aluminum plate is improved, the feeding plate 41 is installed on the output end of the third cylinder 40 through a screw, and the aluminum plate to be processed is fed onto the lower compression roller 27 under the.

Further, the bracing piece 36 has all been welded on the both sides outer wall that bottom plate 1 top outer wall is close to mounting bracket 2, be used for supporting seat 35, and bracing piece 36 outside has cup jointed compression spring 37 and supporting seat 35, supporting seat 35 can extrude compression spring 37 when last compression roller 14 extrudees aluminum plate, thereby slow down the impact force that the 14 quick descents of last compression roller caused, avoid aluminum plate to break away from the centre gripping of pinch roller 31 and lower pinch roller 27, compression spring 37 is located between supporting seat 35 bottom outer wall and bottom plate 1 top outer wall, supporting seat 35 top outer wall depressed part bonds and has the rubber pad, aluminum plate can not impaired when being used for making aluminum plate and supporting seat 35 contact.

Further, the through hole 42 has been seted up to mounting bracket 2 one side outer wall bottom, be the same as make the output of second cylinder 33 run through mounting bracket 2, there is second cylinder 33 mounting bracket 2 one side outer wall near through hole 42 department through the screw, the preferred SC80X175 of second cylinder 33 model, be used for making push plate 38 motion, thereby make push plate 38 push down press roll 27 with the aluminum plate after bending on the press roll 27 down, so that follow-up bending to new aluminum plate, and the output of second cylinder 33 installs through the screw and is located the inside push plate 38 of through hole 42, be used for pushing down the aluminum plate that bends on the press roll 27 under the effect of second cylinder 33 and fall into chute 34.

Further, landing legs 43 are all welded at four corners of the outer wall of the bottom plate 1 and are used for supporting the bottom plate 1, and a blanking groove 34 is formed in one side of the outer wall of the bottom plate 1 and is used for enabling the bent aluminum plate pushed down by the push plate 38 to fall into the material box through the blanking groove 34.

The working principle of the invention is as follows: when the aluminum plate pressing device is used, a worker places a prepared aluminum plate on the feeding frame 11, the clamping plate 25 clamps the aluminum plate under the action of the spring 24 at the moment, the aluminum plate is centered, then the worker can start the third air cylinder 40 to push the aluminum plate onto the two lower pressing rollers 27 through the feeding plate 41 until the aluminum plate is contacted with the sliding plate 26, then the worker starts the electric push rod 28 to enable the sliding block 30 to slide in the sliding groove 32 to enable the pressing roller 31 to press the aluminum plate, then the worker starts the first air cylinder 3 to enable the support 13 to move downwards to enable the upper pressing roller 14 to press the aluminum plate, at the moment, under the extrusion of the upper pressing roller 14, the aluminum plate is gradually bent and contacted with the support seat 35, meanwhile, the support seat 35 can extrude the compression spring 37 to relieve the impact force caused by the rapid descending extrusion of the upper pressing roller 14, and then after the extrusion of the aluminum, go up the compression roller 14 and rise, the staff can start second cylinder 33, make push pedal 38 move, push down the aluminum plate after bending on the compression roller 27 and push down the compression roller 27 and fall into chute 34, then fall into the material box, later the staff repeats above steps and bends aluminum plate, simultaneously at the in-process of bending, the staff can be through rotating runner 20, make lead screw 18 drive slide plate 15 and slide in spout 19, thereby change the distance between slide plate 15 and the support 13 inner wall, so that change the last compression roller 14 of different specifications, so that bend the aluminum plate of different specifications, staff should rotate hand wheel 6 simultaneously, make lead screw 8 rotate, make two push down roller assembly 12 move in opposite directions, thereby change the distance between two lower compression rollers 27, so that bend the piece of bending that is different radians with aluminum plate.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an arc aluminum plate bender of three-roller calendering formula which characterized in that: comprises a bottom plate (1), a mounting rack (2) is welded on one side of the outer wall of the top of the bottom plate (1), a first air cylinder (3) is installed at the center of the outer wall of the top of the mounting rack (2) through a bolt, an upper compression roller assembly (10) is installed on the output end of the first air cylinder (3) through a bolt, the upper compression roller assembly (10) comprises a support (13), a baffle (16) is installed on the outer wall of the front surface of the support (13) through a bolt, a supporting plate (17) is welded on one side of the outer wall of the top of the support (13), a lead screw (18) is rotatably connected between one side of the outer wall of the front surface of the supporting plate (17) and one side of the outer wall of the back surface of the baffle (16) through a bearing, a rotating wheel (20) is connected with one end key of the lead screw (18) far away from the supporting, an upper pressing roller (14) is rotatably connected between one side of the outer wall of the back of the sliding plate (15) and one side of the inner wall of the front of the bracket (13) through a bearing.

2. The three-roller calendering type circular arc aluminum plate bending machine according to claim 1, is characterized in that: the mounting bracket is characterized in that a mounting groove (4) and a guide groove (5) which are distributed in an upper-lower structure are formed in the outer wall of the front face of the mounting bracket (2), a clamping plate (7) is inserted into an opening of one end of the mounting groove (4), a lead screw (8) is rotatably connected between the outer wall of one side of the clamping plate (7) and the inner wall of the mounting groove (4) through a bearing, and a hand wheel (6) is connected with one end key of the lead screw (8) far away from the inner wall of.

3. The three-roller calendering type circular arc aluminum plate bending machine according to claim 2, is characterized in that: the inner portion of the mounting groove (4) is connected with two lower pressure roller assemblies (12) which are distributed in a horizontal structure in a sliding mode, each lower pressure roller assembly (12) comprises a sliding plate (26), each sliding plate (26) is in threaded connection with the corresponding screw rod (8), each sliding plate (26) is in sliding connection with the corresponding guide groove (5), and the bottom of the outer wall of the front face of each sliding plate (26) is connected with a lower pressure roller (27) in a rotating mode through a rotating shaft.

4. The three-roller calendering type circular arc aluminum plate bending machine according to claim 3, is characterized in that: slide groove (32) have been seted up at slide (26) front one side outer wall top, there is mounting panel (29) slide (26) top through the screw mounting, and installs electric putter (28) through the bolt on mounting panel (29) top outer wall, the output of electric putter (28) has slider (30) that are sliding connection with slide groove (32) through the screw mounting, and slider (30) front outer wall one side welding has compressing roller (31).

5. The three-roller calendering type circular arc aluminum plate bending machine according to claim 1, is characterized in that: bottom plate (1) top outer wall both sides all weld have pay-off frame (11), and pay-off frame (11) top outer wall one side seted up first recess (21), be connected with between the relative inner wall in first recess (21) both sides through the bearing rotation and be the deflector roll (22) that equidistant structure distributes.

6. The three-roller calendering type circular arc aluminum plate bending machine according to claim 5, is characterized in that: second recess (23) that link up each other with first recess (21) are seted up to pay-off frame (11) top outer wall one side, and have spring (24) on the welding of second recess (23) one side inner wall, second recess (23) inside sliding connection has splint (25), and the one end welding of keeping away from second recess (23) inner wall in spring (24) is in splint (25) one side outer wall bottom.

7. The three-roller calendering type circular arc aluminum plate bending machine according to claim 1, is characterized in that: two pillars (9) are welded on the two sides of the outer wall of the top of the bottom plate (1), a top plate (39) is welded on the top end of each pillar (9), a third cylinder (40) is installed on one side of the outer wall of the top plate (39) through a bolt, and a feeding plate (41) is installed on the output end of the third cylinder (40) through a screw.

8. The three-roller calendering type circular arc aluminum plate bending machine according to claim 1, is characterized in that: bottom plate (1) top outer wall all welds on being close to the both sides outer wall of mounting bracket (2) and has had bracing piece (36), and bracing piece (36) outside has cup jointed compression spring (37) and supporting seat (35), compression spring (37) are located between supporting seat (35) bottom outer wall and bottom plate (1) top outer wall, supporting seat (35) top outer wall depressed place bonds there is the rubber pad.

9. The three-roller calendering type circular arc aluminum plate bending machine according to claim 1, is characterized in that: through-hole (42) have been seted up to mounting bracket (2) one side outer wall bottom, mounting bracket (2) one side outer wall is close to through-hole (42) department and has second cylinder (33) through the screw mounting, and has push pedal (38) that are located through-hole (42) inside through the screw mounting to the output of second cylinder (33).

10. The three-roller calendering type circular arc aluminum plate bending machine according to claim 1, is characterized in that: landing legs (43) have all been welded in bottom outer wall four corners department of bottom plate (1), charging chute (34) have been seted up to bottom plate (1) bottom outer wall one side.