CN111451404B

CN111451404B - Bending machine

Info

Publication number: CN111451404B
Application number: CN202010326437.XA
Authority: CN
Inventors: 夏业平
Original assignee: Maanshan Hengjian Machinery Co ltd
Current assignee: Maanshan Hengjian Machinery Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-03-16
Anticipated expiration: 2040-04-23
Also published as: CN111451404A

Abstract

The invention relates to the technical field of mechanical automation equipment, and discloses a bending machine. Including the bender body, bender body top is equipped with the operation panel, operation panel department cover is equipped with protection machanism, protection machanism includes both ends open-ended casing, casing open-ended both ends department all is equipped with the connecting plate and accomodates the groove, it has the connecting plate that stretches out the casing to articulate on the lateral wall around the groove is accomodate to the connecting plate, it is equipped with rotatable drive roller just to be located the upper end between the corresponding connecting plate, it is connected with first connecting rod just to be located the tip under the corresponding connecting plate, the cover is equipped with rotatable first driven voller on the first connecting rod, be equipped with the second connecting rod that is located the operation panel left and right sides along the fore-and-aft direction in the casing, the cover is equipped with rotatable second driven voller on. Through the structure, the operation personnel can avoid carrying the workpiece back and forth, and the bending efficiency of the bending machine body is improved.

Description

Bending machine

Technical Field

The invention relates to the technical field of mechanical automation equipment, in particular to a bending machine.

Background

The bending machine is important equipment for bending and forming workpieces in the sheet metal industry and is used for pressing steel plates into parts in various shapes according to process requirements. In the prior art, a bending machine for bending a circular tube, a profile or a plate generally comprises a base and a bending operation platform arranged on the base, wherein when the bending machine is used for bending, an operator can place a workpiece to be bent on the operation platform for bending operation.

Under the general condition, the bender is outside with treating that the work piece of bending is usually shown at the operation panel working part, there is not safeguard measure, dangerous situation is likely to take place at the during operation, and the part that is shown outside also accumulates the dust easily, need often clear up, the dust accumulation is too much still can produce the problem of certain wearing and tearing to each part, simultaneously, under the general condition, treat that the work piece of bending generally can't place on the operation panel, lead to the operator to need to come and go the transport work piece when the work of bending, influence the work efficiency of bender.

Disclosure of Invention

In response to one or more of the deficiencies in the prior art, the present invention provides a bending machine.

In order to solve the above technical problems, the present invention is solved by the following technical solutions.

The bending machine comprises a bending machine body, an operating platform is arranged above the bending machine body, a protective mechanism is covered at the operating platform and comprises a shell with two open ends, connecting plate accommodating grooves are formed in the two open ends of the shell, connecting plates extending out of the shell are hinged to the front side wall and the rear side wall of each connecting plate accommodating groove, a rotatable driving roller is arranged between the corresponding connecting plates and located at the upper ends of the corresponding connecting plates, a first connecting rod is connected between the corresponding connecting plates and located at the lower end of the corresponding connecting plates, a rotatable first driven roller is sleeved on the first connecting rod, second connecting rods located on the left side and the right side of the operating platform are arranged in the shell in the front-rear direction, a rotatable second driven roller is sleeved on the second connecting rod, and a conveying belt; the front side and the rear side of the shell are provided with operation ports corresponding to the operation tables.

According to the invention, the shell can shield the operating platform through the arrangement of the shell, so that the workpiece to be bent can be effectively prevented from accidentally injuring operators during the bending operation; meanwhile, due to the arrangement of the operation port, an operator places the workpiece to be bent, which is conveyed to the operation table on the conveyor belt, on the operation table through the operation port to perform bending operation and places the workpiece which is subjected to the bending operation on the operation table on the conveyor belt to enable the workpiece to be conveyed to the bending machine body.

Preferably, the front side wall, the rear side wall and the bottom end part of the connecting plate accommodating groove are oppositely provided with first hinge holes, and the connecting plate is provided with first hinge columns extending into the corresponding first hinge holes; a first sliding groove is formed in the side wall, opposite to the connecting plate, of the connecting plate along the extending direction of the connecting plate, and a guide rod is arranged in the first sliding groove along the extending direction of the first sliding groove; be equipped with the first slider of slidable in the first spout, the guide bar passes first slider setting, and the both ends of first connecting rod are connected on the first slider that corresponds, and the cover is equipped with the first spring that is used for promoting first slider and moves down on the guide bar.

According to the invention, through the structure, the first connecting rod can move along the first sliding groove, the connecting plate can be rotatably hinged in the connecting plate accommodating groove, so that the conveying belt can be accommodated in the connecting plate accommodating groove in an unused state and can block the opening of the shell, and dust and the like can be preferably prevented from entering the protection mechanism from the opening.

Preferably, the front outer side wall and the rear outer side wall of the shell are provided with mounting grooves positioned at the operation opening, a driving mechanism for driving the connecting plate to be accommodated in the connecting plate accommodating groove is arranged in the mounting grooves, the driving mechanism comprises a first rotating rod which is arranged in the vertical direction and can rotate, and the first rotating rod is provided with threads; the first rotating rod is sleeved with a first lifting block, the first lifting block is provided with a first threaded hole for the first rotating rod to penetrate through and to be matched with the threads, a first hinge groove is formed in the first lifting block, a first hinge connecting rod with one end connected in the first hinge groove in a hinged mode is arranged in the first hinge groove, a second hinge column is arranged at the other end of the first hinge connecting rod, and a second hinge hole for the corresponding second hinge column to extend into is formed in the side wall of the connecting plate.

Through the structure in the invention, the first lifting block can be driven to lift along the first rotating rod by rotating the first rotating rod simultaneously, so that the connecting plate is driven to rotate out of and be stored in the connecting plate mounting groove, and the operation is simple and convenient.

Preferably, a sliding groove communicated with the shell is formed in the mounting groove in the front-back direction, a guide rod positioned at the sliding groove is arranged in the mounting groove in the left-right direction through a mounting plate, a movable mounting block is sleeved on the guide rod, and two ends of the second connecting rod penetrate through the corresponding sliding grooves and are connected to the corresponding mounting blocks; the mounting block is provided with a second hinge groove, a second hinge connecting rod with one end hinged in the second hinge groove is arranged in the second hinge groove, the other end of the second hinge connecting rod is hinged on a second lifting block, and a second threaded hole for the first rotating rod to pass through and be matched with the thread is formed in the second lifting block.

Through the structure of the invention, the first rotating rod is rotated simultaneously to drive the second lifting block to lift along the first rotating rod, so that the distance between the conveyor belt and the operating platform is adjusted, and the conveyor belt can be accommodated in the shell under the condition of nonuse, so that the conveyor belt is better protected.

Preferably, the threads comprise first threads and second threads, a first spring mounting cavity and a second spring mounting cavity are arranged in the first rotating rod and are respectively located at the first threads, and limiting sliding grooves which respectively extend to the lower sides of the first threads and the lower sides of the second threads are oppositely arranged on the side walls of the first spring mounting cavity and the second spring mounting cavity along the extending direction of the first rotating rod; the movable blocks are arranged in the first spring mounting cavity and the second spring mounting cavity, stop blocks extending out of the limiting sliding grooves are arranged on the movable blocks, the stop blocks are located below the corresponding first lifting block and the corresponding second lifting block respectively, and limiting springs used for pulling the corresponding movable blocks to move upwards are arranged in the first spring mounting cavity and the second spring mounting cavity.

Through the structure of the invention, the limiting spring provides a force for pulling the first lifting block and the second lifting block upwards, so that the first lifting block can be better matched with the first thread and the second lifting block can be better matched with the second thread when the first rotating rod is rotated reversely, and the storage of the connecting plate in the connecting plate storage groove and the distance between the conveyor belt and the operating platform can be synchronously adjusted through the first rotating rod.

Preferably, stepped grooves into which the second driven rollers are fitted are provided on the console on the left and right sides.

Through the stepped groove, the conveying surface of the conveying belt is matched with the height of the operating platform, so that the condition that the workpiece to be bent on the conveying belt falls off and accidentally injures an operator due to the height difference between the conveying belt and the operating platform is better prevented.

Preferably, the bottom wall of the stepped groove is provided with a groove, and the bottom wall of the groove is provided with a second sliding groove along the front-back direction; a lifting cavity is arranged on the bottom wall of the groove and positioned on the inner side of the second sliding groove, and a baffle plate with one side extending out of the operating platform is arranged in the lifting cavity through a third spring; a pushing groove is formed in the side face, facing the corresponding groove, of the baffle, and a first inclined plane is arranged in the pushing groove; a rotatable second rotating rod is arranged in the groove, a driving ring used for being matched with the conveying belt is sleeved on the second rotating rod and positioned at two ends of the second rotating rod, a first track and a threaded second track are arranged on the outer side wall of the second rotating rod along the axial direction of the second rotating rod, and two ends of the second track are respectively communicated with two ends of the first track; the cover is equipped with a removal push ring on the second dwang, is equipped with in the removal push ring and can follow first lane and the gliding slip post of second lane, is equipped with on the removal push ring to stretch into gliding second slider in the second spout, is equipped with the ejector pad that stretches into the promotion recess on the removal push ring, is equipped with on the ejector pad to cooperate with first inclined plane to be used for promoting the second inclined plane that the baffle moved down, overlaps on the second dwang to be equipped with the fourth spring that promotes the retrusive of removal push ring.

Through the structure, the second rotating rod can be driven to rotate through the rotation of the conveying belt, so that the baffle plate blocked at the conveying belt can be driven to automatically extend out of or retract into the lifting cavity in a circulating and reciprocating manner, and preferably, workpieces on the conveying belt sequentially enter the operating platform and are sequentially output out of the bending machine body.

Preferably, the opposite side walls of the groove are relatively provided with a rotating groove, and the two end parts of the second rotating rod are provided with rotating columns extending into the corresponding rotating grooves, so that the second rotating rod is rotatably mounted in the groove.

Drawings

Fig. 1 is a schematic view of a bending machine in embodiment 1;

FIG. 2 is a schematic sectional view of the guard mechanism in embodiment 1;

FIG. 3 is a schematic view of the housing in embodiment 1;

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is a schematic view of a driving mechanism in embodiment 1;

FIG. 6 is a schematic sectional view of the first rotating rod in embodiment 1;

fig. 7 is a schematic cross-sectional view of the bending machine in example 1;

fig. 8 is a schematic structural view of a bending machine body in embodiment 1;

fig. 9 is a schematic structural view of a second rotating lever and a moving push ring in embodiment 1;

fig. 10 is a schematic view of a second rotating shaft in embodiment 1;

fig. 11 is a schematic view of a baffle plate in example 1.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.

Example 1

As shown in fig. 1 to 11, the present embodiment provides a bending machine, which includes a bending machine body 100, an operating table 101 is disposed above the bending machine body 100, a protection mechanism 110 is covered at the operating table 101, the protection mechanism 110 includes a housing 111 with two open ends, two open ends of the housing 111 are respectively provided with a connecting plate receiving slot 311, front and rear side walls of the connecting plate receiving slot 311 are hinged with a connecting plate 400 extending out of the housing 111, a rotatable driving roller 410 is arranged between the corresponding connecting plates 400 and positioned at the upper end, a first connecting rod 420 is connected between the corresponding connecting plates 400 and positioned at the lower end, a rotatable first driven roller 421 is sleeved on the first connecting rod 420, second connecting rods 510 positioned at the left side and the right side of the operating platform 101 are arranged in the shell 111 along the front-back direction, a rotatable second driven roller 511 is sleeved on the second connecting rods 510, and a conveying belt 430 is sleeved among the driving roller 410, the first driven roller 421 and the second driven roller 511 which are positioned at the same side of the operating platform 101; the front and rear sides of the housing 111 are provided with operation ports 112 corresponding to the operation table 101.

In the embodiment, the shell 111 is arranged, so that the shell 111 can shield the operating table 101, and the workpiece to be bent can be effectively prevented from causing accidental injury to operators during the bending operation; the driving roller 410, the first connecting rod 420, the first driven roller 421, the second connecting rod 510, the second driven roller 511 and the conveying belt 430 are arranged, so that the first driven roller 421 is rotatably sleeved on the first connecting rod 420, the second driven roller 511 is rotatably sleeved on the second connecting rod 510, the driving roller 410 is further rotated to drive the conveying belt 430 to rotate, and the conveying belt 430 is arranged on two sides of the operating platform 101, so that a workpiece to be bent can be conveyed to the operating platform 101 through the conveying belt 430, and the workpiece which is subjected to bending operation can be output out of the bending machine body 100 through the conveying belt 430; the two ends of the shell 111 are provided with openings, so that the openings form a feeding hole for a workpiece to be bent and a discharging hole for the workpiece to be bent; due to the arrangement of the operation port 112, an operator positioned on the bending machine body 100 can place a workpiece to be bent, which is conveyed to the operation table 101 on the conveyor belt 430, on the operation table 101 through the operation port 112 to perform bending operation and place the workpiece after the bending operation on the conveyor belt 430 to output the workpiece onto the bending machine body 100, so that the operator is prevented from carrying the workpiece back and forth through the structure, and the bending efficiency of the bending machine body 100 is improved; wherein, operation mouth 112 department all is provided with the side door (not seen in the figure) through the hinge, plugs operation mouth 112 through the side door, makes protection machanism 110 have dustproof function and make the effect that prevents to wait to bend the work piece and injure operating personnel by mistake better.

In this embodiment, the front and rear side walls of the connecting plate receiving groove 311 and the bottom end portion are oppositely provided with first hinge holes 312, and the connecting plate 400 is provided with first hinge columns 521 extending into the corresponding first hinge holes 312; a first sliding groove 401 is formed in the opposite side wall of the connecting plate 400 along the extending direction of the connecting plate 400, and a guide rod 440 is arranged in the first sliding groove 401 along the extending direction of the first sliding groove 401; a first sliding block capable of sliding is arranged in the first sliding groove 401, the guide rod 440 penetrates through the first sliding block, two ends of the first connecting rod 420 are connected to the corresponding first sliding blocks, and a first spring 441 used for pushing the first sliding block to move downwards is sleeved on the guide rod 440.

Through the arrangement of the first hinge hole 312 and the first hinge column 521 in the present embodiment, the connection board 400 can rotate around the first hinge column 521 to realize that the connection board 400 is accommodated in the connection board accommodating groove 311, wherein through the arrangement of the first sliding groove 401, the guide rod 440, the first slider and the first spring 441, the guide rod 440 passes through the first slider to limit the first slider to move only along the first sliding groove 401, and further to drive the first link rod 420 to move along the first sliding groove 401 between the connection boards 400, so that the distance between the driving roller 410 and the first driven roller 421 can be adjusted, and the first link rod 400 can be better matched to rotate out and be accommodated in the connection board accommodating groove 311; in the process that the connecting plate 400 is rotatably accommodated into the connecting plate accommodating groove 311, the first driven roller 421 moves downwards along the first sliding groove 401, so that when the connecting plate 400 is accommodated into the connecting plate accommodating groove 311, the first driven roller 421 just moves to the lower end of the connecting plate 400, and the conveying belt 430 between the driving roller 410 and the first driven roller 421 can seal the openings at the two ends of the shell 111, so that external dust cannot enter the shell 111 through the openings under the non-working state of the bending machine body, and the dustproof effect of the protection mechanism 110 is better; when the connection board 400 is rotated out of the connection board receiving slot 311 until the conveyor belt 430 between the driving roller 410 and the second driven roller 511 is in a horizontal working state, the first driven roller 421 moves upwards from the lower end of the connection board 400 along the first sliding slot 401, preferably in coordination with the rotation of the connection board 400; the first spring 441 is disposed to preferably ensure that the conveyor belt 430 is always kept in a tight state when the connecting plate 400 is rotated out of or stored in the connecting plate storage slot 311, which is beneficial to the operation of the conveyor belt 430.

In this embodiment, the front and rear outer side walls of the housing 111 are provided with mounting grooves 330 located at the operation opening 112, the mounting grooves 330 are provided with driving mechanisms for driving the connecting plate 400 to be accommodated in the connecting plate accommodating grooves 311, the driving mechanisms include first rotating rods 320 which are arranged in the up-down direction and can rotate, and the first rotating rods 320 are provided with threads; the first lifting block 530 is sleeved on the first rotating rod 320, a first threaded hole 531 is formed in the first lifting block 530, the first rotating rod 320 penetrates through the first threaded hole and is in threaded fit with the first threaded hole, a first hinge groove 532 is formed in the first lifting block 530, a first hinge connecting rod 540 with one end hinged in the first hinge groove 532 is arranged in the first hinge groove 532, a second hinge column 541 is arranged at the other end of the first hinge connecting rod 540, and a second hinge hole for the second hinge column 541 to extend into is formed in the side wall of the connecting plate 400.

With the structure of the embodiment, since the first lifting block 530 is located in the mounting groove 330 and the first rotating rod 320 is threaded through the first lifting block 530, the side wall of the first lifting block 530 is matched with the side wall of the mounting groove 330 to limit the first lifting block 530, so that the first lifting block 530 cannot rotate around the first rotating rod 320, and since the first rotating rod 320 is rotatably disposed, the first lifting block 530 can be driven to move up and down along the first rotating rod 320 by rotating the first rotating rod 320; the second hinge post 541 extends into the second hinge hole to realize the hinged connection between the first hinge connecting rod 540 and the connecting plate 400 through the arrangement of the second hinge post 541 and the second hinge hole, and because one end of the first hinge connecting rod 540 is hinged to the first lifting block 530, the first hinge connecting rod 540 is pulled to drive the connecting plate 400 to be accommodated in or rotated out of the connecting plate accommodating slot 311 when the first rotating rod 320 positioned on the same side is rotated to drive the first lifting block 540 to lift; through the above structure, the embodiment can drive the connecting plate 400 to store or rotate out of the connecting plate storage slot 311 by rotating the first rotating rod 320, and the operation is simple and convenient.

In this embodiment, the mounting groove 330 is provided with a sliding groove 331 communicating with the inside of the housing 111 along the front-rear direction, the mounting groove 330 is provided with a guide rod 333 positioned at the sliding groove 331 along the left-right direction through a mounting plate 332, the guide rod 333 is sleeved with a movable mounting block 550, and two ends of the second connecting rod 510 penetrate through the corresponding sliding grooves 331 and are connected to the corresponding mounting blocks 550; the mounting block 550 is provided with a second hinge groove 551, the second hinge groove 551 is provided with a second hinge connecting rod 560 with one end hinged in the second hinge groove 551, the other end of the second hinge connecting rod 560 is hinged on a second lifting block 570, and the second lifting block 570 is provided with a second threaded hole 571 through which the first rotating rod 320 passes and which is matched with the thread.

Through the structure of the embodiment, the guide rod 333 passes through the mounting block 550 to limit the mounting block 550 to move only along the guide rod 333, and the arrangement of the sliding groove 331 enables the second connecting rod 510 to be connected to the mounting block 550 and further enables the second driven roller 511 to move along the sliding groove 331, wherein the distance between the working surface of the conveyor belt 430 and the operation table 101 can be adjusted by matching with the movement of the first driven roller 421 along the first sliding groove 401, so that the conveyor belt 430 is preferably accommodated in the casing 111 in an unused state, and the damage of the conveyor belt 430 caused by collision of the bent workpiece with the conveyor belt 430 when the operation table 101 is continuously used for bending operation is prevented; through the arrangement of the second hinge connecting rod 560 and the second lifting block 570, the first rotating rod 320 is threaded through the second lifting block 570 to limit the second lifting block 570, so that the first rotating rod 320 is rotated simultaneously to drive the second lifting block 570 to lift along the first rotating rod 320, the second hinge connecting rod 560 is pulled to drive the mounting block 550 to move back and forth along the guide rod 333, the distance between the working surface of the conveyor belt 430 and the operating platform 110 is adjusted, and the conveyor belt 430 can be stored and protected when not in use.

In this embodiment, the screw threads include a first screw thread 611a and a second screw thread 611b, a first spring installation cavity 612a located at the first screw thread 611a and a second spring installation cavity 612b located at the second screw thread 611b are respectively arranged in the first rotating rod 320, and limit sliding grooves 613 respectively extending to the lower side of the first screw thread 611a and the lower side of the second screw thread 611b are oppositely arranged on the side walls of the first spring installation cavity 612a and the second spring installation cavity 612b along the extending direction of the first rotating rod 320; the first spring installation cavity 612a and the second spring installation cavity 612b are internally provided with a moving block 620, the moving block 620 is provided with a stop block extending out of the limiting sliding groove 613, the stop block is respectively positioned below the corresponding first lifting block 530 and the corresponding second lifting block 570, and the first spring installation cavity 612a and the second spring installation cavity 612b are internally provided with a limiting spring 621 used for pulling the corresponding moving block 620 to move upwards.

Through the arrangement of the first thread 611a and the second thread 611b in this embodiment, the first thread 611a is matched with the corresponding first lifting block 530, and the second thread 611b is arranged with the second lifting block 570, so that the first rotating rod 320 is rotated simultaneously to drive the first lifting block 530 and the second lifting block 570 to lift synchronously to control the connection board 400 to be accommodated in or rotated out of the connection board accommodating groove 311 and adjust the distance between the conveyor belt 430 and the operation table 101; wherein, the first thread 611a and the second thread 611b are spaced apart from each other, so that the first lifting block 530 can be disengaged from the first thread 611a and the second lifting block 570 can be disengaged from the second thread 611b when the first rotating rod 320 is continuously rotated, preferably preventing the driving mechanism from being damaged due to misoperation; wherein the stoppers extend out of the corresponding limit sliding slots 613 and are positioned below the corresponding first lifting block 530 and the second lifting block 570, so that the stoppers can restrict the lowering of the first and second

elevating blocks

530 and 570, respectively, preferably prevent the second elevating block 570 from being rotated into the first screw 611a, and, at the same time, due to the arrangement of the limiting spring 621, when the first lifting block 530 is disengaged from the first thread 611a, and the second lifting block 570 is disengaged from the second thread 611b, the limiting spring 621 provides a force for pulling the first lifting block 530 and the second lifting block 570 to move upwards, and at the same time, when the first rotating rod 320 is rotated reversely, the first lifting block 530 can be driven to be matched with the first thread 611a, and the second lifting block 570 is matched with the second thread 611b, so that the first lifting block 530 and the second lifting block 570 can ascend along the first rotating rod 320 to control the accommodating of the connecting plate 400 and adjust the distance between the conveyor belt 430 and the operating platform 101.

In this embodiment, stepped grooves 711 into which the second driven rollers 511 are fitted are provided on the left and right sides of the console 101.

Through the arrangement of the stepped groove 711 in the embodiment, the second driven roller 511 can be located in the stepped groove 711, so that the conveying surface of the conveying belt 430 is matched with the height of the operating platform 101, and therefore, the phenomenon that the workpiece to be bent on the conveying belt 430 falls off due to the height difference between the conveying belt 430 and the operating platform 101 to injure an operator by mistake is preferably prevented.

In this embodiment, a groove 712 is disposed on the bottom wall of the stepped groove 711, and a second sliding groove 713 is disposed on the bottom wall of the groove 712 along the front-rear direction; a lifting cavity 714 is arranged on the bottom wall of the groove 712 and positioned on the inner side of the second sliding chute 713, and a baffle 812 with one side extending out of the operating platform 101 is arranged in the lifting cavity 714 through a third spring 811; a pushing groove 1111 is arranged on the side surface of the baffle 812 facing the corresponding groove 712, and a first inclined surface 1112 is arranged in the pushing groove 1111; a rotatable second rotating rod 910 is arranged in the groove 712, a driving ring 911 for matching with the conveyor belt 430 is sleeved on the second rotating rod 910 and positioned at two ends, a first track 1011 and a threaded second track 1012 are arranged on the outer side wall of the second rotating rod 910 along the axial direction of the second rotating rod 910, and two ends of the second track 1012 are respectively communicated with two ends of the first track 1011; the cover is equipped with a removal throw 920 on the second dwang 910, be equipped with in the removal throw 920 and can follow first lane 1011 and the gliding sliding column of second lane 1012, be equipped with on the removal throw 920 and stretch into gliding second slider 921 of second spout 713, be equipped with the ejector pad 922 that stretches into promotion recess 1111 on the removal throw 920, be equipped with on the ejector pad 922 and cooperate with first inclined plane 1112 and be used for promoting the second inclined plane 923 that baffle 812 moved down, the cover is equipped with on the second dwang 910 and promotes the fourth spring 924 that the throw 920 moved backward.

Through the arrangement of the groove 712, the second rotating rod 910 and the driving ring 911 in the present embodiment, when the conveyor belt 430 is clamped into the stepped groove 711, the conveyor belt 430 is pressed against the driving ring 911 so that the conveyor belt 430 can drive the second rotating rod 910 to rotate; due to the matching arrangement of the second sliding groove 713 and the second sliding block 921, the movable push ring 920 is limited and cannot rotate around the second rotating rod 910; due to the arrangement of the first track 1011, the second track 1012, the sliding column and the fourth spring 924, and the second track 1011 is in a threaded shape, the second rotating rod 910 can rotate to drive the sliding column to move along the second track 1012 to drive the moving push ring 920 to move along the second rotating rod 910; due to the matching arrangement of the pushing groove 1111 and the pushing block 922, the pushing block 922 extends into the pushing groove 1111, the second inclined surface 923 on the pushing block 922 is extruded with the first inclined surface 1112, and in the process that the movable push ring 920 moves along the second rotating rod 910, the second inclined surface 923 extrudes the first inclined surface 1112 to retract the baffle 812 into the lifting cavity 714, so that the baffle 812 is not blocked by the conveyer belt 430, and the workpiece to be bent on the conveyer belt 430 can enter the operation table 101 and the workpiece which is bent on the operation table 101 is placed on the conveyer belt 430 and is discharged out of the bending machine body 100; when the sliding column slides from the second track 1012 to one end of the first track 1011, the fourth spring 924 provides elastic force to push the movable push ring 920 to reset to drive the sliding column to slide to the other end of the first track 1011 and to be located at the entrance of the second track 1012, at this time, the second inclined surface 923 releases the extrusion with the first inclined surface 1112, the third spring 811 pushes the baffle 812 to extend out of the lifting cavity 714 to stop the conveyor belt 430 again, and then the second rotating rod 910 is rotated to drive the movable push ring 920 to move again to retract the baffle 812 into the lifting cavity 714; through the above configuration, the baffle 812 can be driven by the conveyor belt 430 to automatically and circularly extend or retract into the lifting cavity 714, and it is preferable that workpieces on the conveyor belt 430 sequentially enter the operation table 101 and workpieces on the operation table 101 sequentially exit the bending machine body 100.

In this embodiment, the opposite side walls of the recess 712 are provided with opposite rotation grooves 715, and the two end portions of the second rotation rod 910 are provided with rotation posts 912 extending into the corresponding rotation grooves 715, so as to preferably realize the rotation of the second rotation rod in the recess.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims

1. Bender, including bender body (100), its characterized in that: bender body (100) top is equipped with operation panel (101), operation panel (101) department cover is equipped with protection machanism (110), protection machanism (110) are including both ends open-ended casing (111), casing (111) open-ended both ends department all is equipped with connecting plate and accomodates groove (311), articulated on the front and back lateral wall of connecting plate accomodate groove (311) have connecting plate (400) that stretch out casing (111), it is equipped with rotatable drive roller (410) to just be located the upper end between corresponding connecting plate (400), it is connected with first connecting rod (420) to just be located the lower tip between corresponding connecting plate (400), the cover is equipped with rotatable first driven voller (421) on first connecting rod (420), be equipped with second connecting rod (510) that are located operation panel (101) left and right sides along the fore-and-aft direction in casing (111), the cover is equipped with rotatable second driven voller (511) on second connecting rod (510), drive roller (410, A conveying belt (430) is sleeved between the first driven roller (421) and the second driven roller (511); the front side and the rear side of the shell (111) are provided with operation ports (112) corresponding to the operation table (101); the front side wall, the rear side wall and the bottom end part of the connecting plate accommodating groove (311) are oppositely provided with first hinge holes (312), and the connecting plate (400) is provided with first hinge columns (521) extending into the corresponding first hinge holes (312); a first sliding groove (401) is formed in the side wall, opposite to the connecting plate (400), of the connecting plate (400) along the extending direction of the connecting plate (400), and a guide rod (440) is arranged in the first sliding groove (401) along the extending direction of the first sliding groove (401); be equipped with the first slider of slidable in first spout (401), guide bar (440) pass first slider setting, and the both ends of first connecting rod (420) are connected on the first slider that corresponds, and the cover is equipped with first spring (441) that are used for promoting first slider and move down on guide bar (440).

2. Machine according to claim 1, characterized in that: the front outer side wall and the rear outer side wall of the shell (111) are provided with mounting grooves (330) positioned at the operation port (112), the mounting grooves (330) are internally provided with driving mechanisms used for driving the connecting plates (400) to be accommodated in the connecting plate accommodating grooves (311), the driving mechanisms comprise first rotating rods (320) which are arranged along the vertical direction and can rotate, and the first rotating rods (320) are provided with threads; the first lifting block (530) is sleeved on the first rotating rod (320), the first lifting block (530) is provided with a first threaded hole (531) for the first rotating rod (320) to penetrate through and to be matched with the threads, the first lifting block (530) is provided with a first hinge groove (532), the first hinge groove (532) is internally provided with a first hinge connecting rod (540) with one end hinged in the first hinge groove (532), the other end of the first hinge connecting rod (540) is provided with a second hinge column (541), and the side wall of the connecting plate (400) is provided with a second hinge hole for the corresponding second hinge column (541) to extend into.

3. Machine according to claim 2, characterized in that: a sliding groove (331) communicated with the inside of the shell (111) is formed in the mounting groove (330) along the front-back direction, a guide rod (333) positioned at the sliding groove (331) is arranged in the mounting groove (330) along the left-right direction through a mounting plate (332), a movable mounting block (550) is sleeved on the guide rod (333), and two ends of the second connecting rod (510) penetrate through the corresponding sliding grooves (331) and are connected to the corresponding mounting blocks (550); the mounting block (550) is provided with a second hinge groove (551), a second hinge connecting rod (560) with one end hinged in the second hinge groove (551) is arranged in the second hinge groove (551), the other end of the second hinge connecting rod (560) is hinged on a second lifting block (570), and a second threaded hole (571) for the first rotating rod (320) to penetrate and to be matched with the thread is formed in the second lifting block (570).

4. Machine according to claim 3, characterized in that: the screw thread comprises a first screw thread (611a) and a second screw thread (611b), a first spring installation cavity (612a) and a second spring installation cavity (612b) are respectively arranged in the first rotating rod (320) and are respectively positioned at the first screw thread (611a) and the second screw thread (611b), and limit sliding grooves (613) respectively extending to the lower side of the first screw thread (611a) and the lower side of the second screw thread (611b) are oppositely arranged on the side walls of the first spring installation cavity (612a) and the second spring installation cavity (612b) along the extending direction of the first rotating rod (320); the first spring mounting cavity (612a) and the second spring mounting cavity (612b) are internally provided with moving blocks (620), the moving blocks (620) are provided with stop blocks extending out of the limit sliding grooves (613), the stop blocks are respectively positioned below the first lifting block (530) and the second lifting block (570), and limit springs (621) used for pulling the corresponding moving blocks (620) to move upwards are arranged in the first spring mounting cavity (612a) and the second spring mounting cavity (612 b).

5. Machine according to claim 1, characterized in that: stepped grooves (711) into which the second driven rollers (511) are fitted are provided on the left and right sides of the console (101).

6. Machine according to claim 5, characterized in that: a groove (712) is formed in the bottom wall of the stepped groove (711), and a second sliding groove (713) is formed in the bottom wall of the groove (712) along the front-back direction; a lifting cavity (714) is formed in the bottom wall of the groove (712) and located on the inner side of the second sliding groove (713), and a baffle (812) with one side extending out of the operating platform (101) is arranged in the lifting cavity (714) through a third spring (811); a pushing groove (1111) is formed in the side face, facing the corresponding groove (712), of the baffle (812), and a first inclined plane (1112) is arranged in the pushing groove (1111); a rotatable second rotating rod (910) is arranged in the groove (712), a driving ring (911) matched with the conveying belt (430) is sleeved on the second rotating rod (910) and positioned at two ends of the second rotating rod, a first track (1011) and a threaded second track (1012) are arranged on the outer side wall of the second rotating rod (910) along the axial direction of the second rotating rod (910), and two ends of the second track (1012) are respectively communicated with two ends of the first track (1011); the cover is equipped with one and removes push ring (920) on second dwang (910), be equipped with in removing push ring (920) and can follow first lane (1011) and the gliding slip post of second lane (1012), be equipped with on removing push ring (920) and stretch into gliding second slider (921) of second spout (713), be equipped with on removing push ring (920) and stretch into ejector pad (922) that promote recess (1111), be equipped with on ejector pad (922) and cooperate with first inclined plane (1112) and be used for promoting second inclined plane (923) that baffle (812) moved down, the cover is equipped with fourth spring (924) that promote to remove push ring (920) rearward on second dwang (910).

7. Machine according to claim 6, characterized in that: the opposite side walls of the groove (712) are oppositely provided with rotating grooves (715), and the two end parts of the second rotating rod (910) are provided with rotating columns (912) extending into the corresponding rotating grooves (715).