CN110743942B

CN110743942B - Multi-position synchronous bending forming mechanism at two ends of section bar and section bar bending forming method

Info

Publication number: CN110743942B
Application number: CN201910987902.1A
Authority: CN
Inventors: 黄秀华; 黄奋
Original assignee: FUJIAN FENAN ALUMINUM CO LTD
Current assignee: Fen An Aluminum Co.,Ltd.
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-12-01
Anticipated expiration: 2039-10-17
Also published as: CN110743942A

Abstract

The invention discloses a synchronous bending forming mechanism with multiple positions at two ends of a section, wherein a plurality of groups of auxiliary conveying device assemblies are sequentially distributed from front to back along the conveying direction of a main conveying device, and each group of auxiliary conveying device assemblies comprises a first auxiliary conveying device and a second auxiliary conveying device. The distance between the first auxiliary conveying device and the second auxiliary conveying device in the front group of auxiliary conveying device assemblies is larger than the distance between the first auxiliary conveying device and the second auxiliary conveying device in the rear group of auxiliary conveying device assemblies. The bending device is used for bending the part of the end part of the section bar, which extends out of the unbent area or the unbent area corresponding to the auxiliary conveying device, and ensures that the conveying work of each conveying device and the bending work of the bending device are alternately carried out. The invention also discloses a method for sequentially bending a plurality of aluminum profiles for a plurality of times. The bending device has the advantages that the two ends of the sectional material are synchronously bent for multiple times, and the bending of a plurality of sectional materials in a flowing water sequence can be realized.

Description

Multi-position synchronous bending forming mechanism at two ends of section bar and section bar bending forming method

Technical Field

The invention relates to the technical field of profile processing and forming, in particular to the technical field of profile bending and forming.

Background

After a section bar such as an aluminum section bar is cast, heat-treated and cut, a long-strip-shaped blank is formed, and in order to meet the requirements of different processing technologies, the blank needs to be bent to form various bent structures.

The prior art bending of profiles comprises the following three types;

first, the profile is continuously bent along its length. Specifically, the sectional material is conveyed from the limiting rollers by adjusting the distance between the limiting rollers, and the side surface of the sectional material is extruded by the limiting rollers to generate continuous bending in the conveying process.

Second, the profile is bent intermittently, i.e., in multiple locations, along its length. Specifically, through the interval between the adjustment each spacing roller, the tip of section bar is carried to between each spacing roller, remove one of them spacing roller for after this spacing roller drives the tip of section bar crooked to the angle of settlement, this spacing roller resets, continue to carry this section bar a section of distance after, remove this spacing roller once more, after making this spacing roller drive one section relative with this spacing roller in the section bar crooked to next angle of settlement, this spacing roller resets, … … is so, realize the many places of section bar crooked.

And thirdly, synchronously bending the two ends of the sectional material, namely, the two ends of the sectional material respectively correspond to a group of bending devices, and the two ends of the sectional material are synchronously bent by the synchronous motion of the bending devices.

In the first mode, such as the steel strip reinforcement bending device disclosed in patent application 2014208540412 and the roller bending machine disclosed in patent application 200980104917.3, the profile is conveyed by a guide mechanism, passes through the bending roller set, and is continuously bent under the limiting extrusion action of the bending roller set.

According to the technical scheme, the bending of the section is carried out to the bending roller set in a one-way mode, and continuous bending is achieved by means of the limiting extrusion effect of the bending roller set. So, because the restriction of one-way transport, this technical scheme can not realize carrying out synchronous crooked to the both ends of section bar, in addition, because the state of each spacing roller in the bending roll group is when crooked, and the position state is fixed, hardly satisfies to carry out discontinuous bending to the section bar many places.

In the second mode, for example, a numerical control roll bending machine sold by the looping machine (shanghai) limited company, a novel steel bar bending machine disclosed in patent application 2017205404744, a bus bender disclosed in patent application 2012206718303, and an aluminum profile corner bending device disclosed in patent application 2018211722927 drive a profile to be bent around a limiting roller through linear motion of a movable member, so that the effect of bending multiple sections of the profile is achieved.

According to the technical scheme, the radian of single bending of the section can be adjusted by adjusting the movement displacement of the movable part, so that the section can be bent at multiple positions in a segmented manner; however, the implementation of the technical scheme still depends on one-way conveying as a basis, and synchronous multi-bending of two ends of the section is difficult to realize.

In a third mode, the hydraulic shearing double-head bending machine disclosed in patent application 20152074493X is configured to synchronously bend two ends of a profile by arranging a set of bending devices at two ends of the profile respectively and synchronously rotating the two sets of bending devices. However, in the implementation process of the technical method, the two ends of the profile are simultaneously stressed, and a continuous conveying and bending mode cannot be adopted, so that the profile is always in a static state, only single bending of the two ends of the profile can be realized, and multiple bending of the two ends of the profile cannot be realized.

Disclosure of Invention

The technical problem to be solved by the invention is how to realize the synchronous repeated bending of two ends of the sectional material and the sequential bending of a plurality of sectional materials in flowing water.

The invention solves the technical problems through the following technical means: a synchronous bending forming mechanism for multiple positions at two ends of a section comprises a main conveying device, an auxiliary conveying device assembly and a bending device;

the auxiliary conveying device assemblies are sequentially distributed from front to back along the conveying direction of the main conveying device, each auxiliary conveying device assembly comprises a first auxiliary conveying device and a second auxiliary conveying device which are symmetrically distributed on two sides of the main conveying device, and the conveying directions of the first auxiliary conveying device, the second auxiliary conveying device and the main conveying device are consistent and move synchronously; the distance between the first auxiliary conveying device and the second auxiliary conveying device in the front group of auxiliary conveying device assemblies is larger than the distance between the first auxiliary conveying device and the second auxiliary conveying device in the rear group of auxiliary conveying device assemblies; the middle area of the section bar is positioned on the main conveying device, and the end part of the section bar is positioned on the corresponding auxiliary conveying device; the auxiliary conveying devices correspond to the bending devices one by one; the bending device is used for bending the part of the end part of the section bar, which extends out of the unbent area or the unbent area of the corresponding auxiliary conveying device, and ensures that the conveying work of each conveying device and the bending work of the bending device are alternately carried out.

The invention also discloses a method for sequentially bending a plurality of sectional materials for a plurality of times, which comprises the following steps:

placing a first section on a main conveying device and an auxiliary conveying device assembly positioned at the forefront, ensuring that the middle area of the first section is positioned on the main conveying device, and two ends of the first section are respectively positioned on a first auxiliary conveying device and a second auxiliary conveying device in the forefront auxiliary conveying device assembly to obtain the initial position of the first section;

starting a main conveying device, conveying backwards by the main conveying device to drive all auxiliary conveying device assemblies to synchronously convey backwards, and conveying a first section to a group of bending devices matched with the foremost auxiliary conveying device assembly; at the moment, the main conveying device stops moving, the bending device starts moving, and two ends of the first section are bent for one time; placing a second section bar at the initial position of the first section bar;

thirdly, resetting the bending device and stopping movement; at the moment, the main conveying device conveys backwards to drive the first section to convey towards the lower group of bending devices and drive the second section to convey towards the front group of bending devices;

step four, the first section bar is conveyed to the position matched with the next group of bending devices, and simultaneously, the second section bar is conveyed to the position matched with the bending device of the frontmost auxiliary conveying device assembly; the main conveying device stops moving, the bending device is started, the first section is bent for the second time, and the second section is bent for the first time;

and step five, sequentially bending the two ends of the plurality of sectional materials for a plurality of times according to the steps.

The invention links the main conveying device with each auxiliary conveying device component, and ensures that the distance between the first auxiliary conveying device and the second auxiliary conveying device in the front group of auxiliary conveying device components is larger than the distance between the first auxiliary conveying device and the second auxiliary conveying device in the rear group of auxiliary conveying device components, thereby meeting the primary condition of synchronously carrying out multiple bending on two ends of the section. The main conveying device provides continuous conveying for the section, each auxiliary conveying device assembly is linked with the main conveying device, the supporting of the end part of the section can be realized, the main conveying device is matched with the auxiliary conveying device to synchronously convey the section, the auxiliary conveying device is used for sharing the load of the main conveying device, and the stability of the section conveying is ensured. According to the invention, the distance between the first auxiliary conveying device and the second auxiliary conveying device in the front group of auxiliary conveying device assemblies is larger than the distance between the first auxiliary conveying device and the second auxiliary conveying device in the rear group of auxiliary conveying device assemblies, and each group of auxiliary conveying device assemblies is matched with the corresponding bending device, so that when the section is to be bent by which group of bending devices, the end part of the section is only matched with the auxiliary conveying device assemblies matched with the group of bending devices, and the key for realizing multiple-time sequential bending of two ends is provided. In addition, the main conveying device and the bending devices are adopted to alternately convey and bend, the main conveying device stops once, each group of bending devices can be guaranteed to synchronously work once, the sections with different roots are correspondingly bent respectively, the main conveying device moves once, all the bending devices stop, new section material feeding, section material synchronous blanking after bending completion and section materials in other bending processes can be moved to the next bending section, so that the sequential bending of a plurality of section materials is realized, and the industrial water flow is greatly improved.

Preferably, fastening devices are arranged on the main conveying device at intervals and used for locking the position of the section bar; the distance between adjacent fastening devices is equal to the length conveyed by each movement of the main conveying device.

Preferably, the fastening device comprises a driving rotating shaft, a linkage chain wheel assembly, a connecting shaft, a first bevel gear, a second bevel gear, a transmission shaft, a rotating rod, a transmission rod, a moving rod, an inclined guide track, a horizontal sliding block and a baffle plate; the driving rotating shaft is opposite to the baffle, one end of the driving rotating shaft facing the baffle is a screw rod end, and the horizontal sliding block is matched with the screw rod end; the connecting shaft is positioned above the rotating shaft and is linked through a linkage chain wheel assembly; the first bevel gear is sleeved on the connecting shaft, the second bevel gear is meshed with the first bevel gear sleeve, the second bevel gear is sleeved on the transmission shaft, at least one rotating rod is rotatably connected to the transmission shaft, and the rotating rod, the transmission rod, the moving rod and the inclined guide rails correspond to one another one by one; the end part of the rotating rod is hinged with one end of the corresponding transmission rod, the other end of the transmission rod is hinged with one end, with a higher position, of the moving rod, and the end, with the lower position, of the moving rod penetrates through the inclined guide track and extends towards the position direction of the baffle; and one ends of the horizontal sliding block and the moving rod, which are close to the baffle, are elastic ends.

When a long section is bent, the section is subjected to bending stress and is driven by a motor to convey, and the section is subjected to external force, so that position movement is easy to occur, and the section cannot be accurately moved to a bending point. The fastening devices are arranged on the main conveying device at intervals, so that the section is fastened, and the position stability of the section in the conveying process is ensured. Because the distance between the adjacent fastening devices is equal to the length conveyed by the main conveying device in each movement, the fastening devices play a role in positioning while fastening, ensure the sequential and smooth bending of each section, fix the position of the section placed on the main conveying device and facilitate the feeding of workers.

By adopting the fastening device structure, the multipoint and multidirectional clamping stress of the section bar can be realized by rotating the driving rotating shaft, and the clamping stability is improved. Because the moving rod of the invention is positioned above the driving rotating shaft, when the horizontal sliding block and the moving rod act on the section bar at the same time, all stress points on the section bar are staggered on the vertical surface, and all stress points are connected with each other to form a surface, thus further improving the stable effect of clamping. Because one ends of the horizontal sliding block and the moving rod, which are close to the baffle, are elastic ends, the elastic contact among the horizontal sliding block, the moving rod and the section bar is ensured, and the extrusion deformation caused by rigid contact is avoided; on the other hand, the defect that the horizontal sliding block and the moving rod cannot act on the section bar simultaneously due to different displacement amounts can be avoided.

Preferably, the main conveying device, the first auxiliary conveying device and the second auxiliary conveying device are all belt conveying devices or chain plate type conveyors; the driving wheel of the main conveying device, the driving wheel of the first auxiliary conveying device in the auxiliary conveying device assembly at the forefront position and the driving wheel of the second auxiliary conveying device in the auxiliary conveying device assembly at the forefront position are connected through a driving shaft; the driving wheels of the first auxiliary conveying devices in the other auxiliary conveying device assemblies are linked with the driving shaft through a first belt conveying device or a first chain conveying device respectively; and driving wheels of second auxiliary conveying devices in the other auxiliary conveying device assemblies are linked with the driving shaft through a second belt conveying device or a second chain conveying device respectively.

Preferably, the bending device comprises a limiting pair roller and a movable roller; the limiting pair rollers comprise upper limiting rollers and lower limiting rollers, the upper limiting rollers and the lower limiting rollers are arranged up and down, and the unbent areas in the end parts of the sectional materials can extend out of gaps between the corresponding upper limiting rollers and the corresponding lower limiting rollers; the path of the lifting movement of the movable roller can intersect the unbent region of the end of the profile that protrudes through the gap.

Preferably, the driving shaft drives the driving shaft to move through a driving shaft driving device; the driving shaft driving device comprises a servo motor or a stepping motor;

or the driving shaft driving device comprises a driving shaft driving belt pulley linkage assembly, a driving shaft driving pinion, a driving shaft driving gearwheel, a driving shaft driving sheave and a driving shaft driving drive plate; the driving shaft is in linkage with the driving shaft driving pinion through the driving shaft driving belt pulley linkage assembly, the driving shaft driving pinion is meshed with the driving shaft driving gearwheel, the driving shaft driving sheave is in linkage with the driving shaft driving gearwheel through the driving shaft driving connecting shaft, and the driving shaft driving plate is matched with the driving shaft driving sheave to form a sheave mechanism. Of course, the intermittent matching mode between the driving shaft driving plate and the driving shaft driving grooved wheel can adopt an incomplete gear to replace the driving shaft driving plate and a driven linkage gear to replace the driving shaft driving grooved wheel, and the sawtooth section of the incomplete gear is meshed with the sawtooth section of the driven linkage gear to replace the driving shaft driving grooved wheel.

Preferably, the movable roller is driven to move up and down by a lifting device; the lifting device comprises one of a servo cylinder, a servo oil cylinder and an electric push rod;

or the lifting device comprises a connecting rod shaft, a first incomplete gear, a first driven linkage gear, a second driven linkage gear, a first belt pulley linkage assembly, a rack, a third incomplete gear and a third driven linkage gear;

the driving shaft driving plate is in linkage with the first incomplete gear through the connecting rod shaft; the first incomplete gear can be meshed with the first driven linkage gear, the first driven linkage gear is meshed with the second driven linkage gear, the second driven linkage gear is meshed with a driving wheel in the first belt pulley linkage assembly and is linked with a driving wheel in the first belt pulley linkage assembly through a first linkage shaft, a driven wheel in the first belt pulley linkage assembly is linked with the third incomplete gear through a second linkage shaft, the third incomplete gear is alternately meshed with the rack and the third driven linkage gear, and the third driven linkage gear is meshed with the rack; the movable roller is installed on the rack.

By adopting the mechanical transmission matching mode, the sequential continuous operation of the first conveying and the second bending of the section is realized, and the industrial automation level of the section processing bending forming is improved.

Preferably, the bending device further comprises a bending device frame, a limiting roller screw rod, an upper limiting roller connecting arm, an upper limiting roller movable block, a lower limiting roller connecting arm, a lower limiting roller movable block and a movable roller connecting arm;

the limiting roller screw rods are respectively arranged on the bending device rack; one end, close to the corresponding auxiliary conveying device, of the upper limiting roller connecting arm is connected with the upper limiting roller, one end, far away from the corresponding auxiliary conveying device, of the upper limiting roller connecting arm is connected with the upper limiting roller movable block, and the upper limiting roller movable block is matched with the upper end of the limiting roller screw rod in the vertical direction;

one end, close to the corresponding auxiliary conveying device, of the lower limiting roller connecting arm is connected with the lower limiting roller, one end, far away from the corresponding auxiliary conveying device, of the lower limiting roller connecting arm is connected with the lower limiting roller movable block, and the lower limiting roller movable block is matched with the lower end of the limiting roller screw rod in the vertical direction;

a horn-shaped channel with a narrower end close to the corresponding auxiliary conveying device and a wider end far away from the corresponding auxiliary conveying device is formed between the upper limiting roller connecting arm and the lower limiting roller connecting arm; the movable roller is connected with the rack through the movable roller connecting arm; the upper end of the limiting roller screw rod and the lower end of the limiting roller screw rod are opposite in thread direction.

Because the upper end of the limiting roller screw rod and the lower end of the limiting roller screw rod have opposite thread directions, the upper limiting roller movable block and the lower limiting roller movable block can move oppositely or back to back by rotating the limiting roller screw rod, so that the upper limiting roller and the lower limiting roller can move oppositely or back to back, and the purpose of adjusting the gap between the upper limiting roller and the lower limiting roller is achieved. The upper limiting roller and the upper limiting roller connecting arm, and the lower limiting roller connecting arm can be fixedly connected or detachably connected. Because the trumpet-shaped channel with a narrower end close to the corresponding auxiliary conveying device and a wider end far away from the corresponding auxiliary conveying device is formed between the upper limiting roller connecting arm and the lower limiting roller connecting arm, an avoiding space is provided for a bent area in the sectional material, and the barrier-free smooth conveying of the sectional material is ensured.

Preferably, the rack comprises a plurality of sawtooth sections from top to bottom along the length direction of the rack wire rod, and the specifications of sawteeth in each sawtooth section are different; each saw tooth section is matched with one movable roller.

The invention divides the rack into a plurality of saw tooth sections with different specifications along the length direction of the rack, and each saw tooth section is matched with a movable roller. When the curvature of the section bar needs to be adjusted, the change of the displacement of the rack can be realized by selecting the corresponding sawtooth section and then matching the sawtooth section with the corresponding third incomplete gear and the corresponding third driven linkage gear. Furthermore, the requirement that one rack can meet various strokes is met, the use flexibility of the rack is improved, and the replacement times of the rack is reduced.

The invention has the advantages that: (1) the invention links the main conveying device with each auxiliary conveying device component, and ensures that the distance between the first auxiliary conveying device and the second auxiliary conveying device in the front group of auxiliary conveying device components is larger than the distance between the first auxiliary conveying device and the second auxiliary conveying device in the rear group of auxiliary conveying device components, thereby meeting the primary condition of synchronously carrying out multiple bending on two ends of the section. (2) The main conveying device provides continuous conveying for the section, each auxiliary conveying device assembly is linked with the main conveying device, the supporting of the end part of the section can be realized, the main conveying device is matched with the auxiliary conveying device to synchronously convey the section, the auxiliary conveying device is used for sharing the load of the main conveying device, and the stability of the section conveying is ensured. (3) According to the invention, the distance between the first auxiliary conveying device and the second auxiliary conveying device in the front group of auxiliary conveying device assemblies is larger than the distance between the first auxiliary conveying device and the second auxiliary conveying device in the rear group of auxiliary conveying device assemblies, and each group of auxiliary conveying device assemblies is matched with the corresponding bending device, so that when the section is to be bent by which group of bending devices, the end part of the section is only matched with the auxiliary conveying device assemblies matched with the group of bending devices, and the key for realizing multiple-time sequential bending of two ends is provided. (4) The main conveying device and the bending devices are adopted to alternately convey and bend, the main conveying device stops once, each group of bending devices can be guaranteed to synchronously work once and respectively bend the profiles with different roots correspondingly, the main conveying device moves once, all the bending devices stop, new profile feeding, synchronous blanking of the bent profiles and movement of the profiles in other bending processes to the next bending section can be achieved, and therefore sequential bending of the profiles is achieved, and industrial water flow is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a synchronous bending mechanism for multiple ends of a profile in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a synchronous bending mechanism for multiple positions at two ends of a profile in an embodiment of the invention at a side view.

Fig. 3 is a partially enlarged view of a portion a of fig. 2 according to the present invention.

Fig. 4 is a partially enlarged view of a portion B of fig. 2 according to the present invention.

Fig. 5 is a schematic structural diagram of a bending apparatus in embodiment 3 of the present invention.

Fig. 6 is a schematic structural view of a rack in embodiment 4 of the present invention.

Fig. 7 is a schematic structural view of a fastening device in an embodiment of the present invention.

Fig. 8 is a partially enlarged view of fig. 7 according to the present invention.

Fig. 9 is a schematic structural view of a bending apparatus according to embodiment 6 of the present invention.

Fig. 10 is a partially enlarged view of fig. 9 in accordance with an embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a third incomplete gear in a state of being engaged with a rack in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but 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 an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The present embodiment is described by taking an aluminum profile as an example, and other prior art profiles such as steel strips, steel pipes, steel bars, bus bars, wire drawing and the like which are bent by the mechanism of the present invention should also be within the protection scope of the present invention.

Example 1

As shown in fig. 1, the embodiment discloses a mechanism for synchronously bending and forming a plurality of sections at two ends of a profile, which comprises a main conveying device 1, an auxiliary conveying device assembly 2 and a bending device 3.

The plurality of groups of auxiliary conveying device assemblies 2 are sequentially distributed from front to back along the conveying direction of the main conveying device 1, each group of auxiliary conveying device assemblies 2 comprises a first auxiliary conveying device 201 and a second auxiliary conveying device 202 which are symmetrically distributed on two sides of the main conveying device 1, and the conveying directions of the first auxiliary conveying device 201, the second auxiliary conveying device 202 and the main conveying device 1 are consistent and move synchronously. The middle area of the aluminium profile 8 is located on the main conveyor 1, and the unbent area in the end of the aluminium profile 8 is located on and runs through the corresponding auxiliary conveyor. The auxiliary conveying devices correspond to the bending devices 3 one by one. Preferably, the front and rear conveying lengths of all the auxiliary conveying devices are the same, and the distance between two adjacent auxiliary conveying devices is the same. The bending device 3 is used for bending the part of the end part of the aluminum profile 8 extending out of the unbent area or the unbent area corresponding to the auxiliary conveying device, and ensures that the conveying work of the main conveying device 1 and the bending work of the bending device 3 are alternately carried out.

In the present embodiment, the number of the auxiliary conveyor assemblies 2 is two, and the two are respectively the first auxiliary conveyor assembly 21 located at the front and the second auxiliary conveyor assembly 22 located at the back. Of course, the number of the auxiliary conveyor assemblies 2 of the present invention is not limited by the number of the present embodiments, and other numbers of auxiliary conveyor assemblies 2 adopting the structure and manner of the present invention to perform the profile bending are also within the protection scope of the present invention.

According to the invention, a first aluminum profile 81 is placed on the main conveying device 1 and the first auxiliary conveying device assembly 21, the middle area of the first aluminum profile 81 is ensured to be positioned on the main conveying device 1, and two ends of the first aluminum profile 81 are respectively positioned on the first auxiliary conveying device 201 and the second auxiliary conveying device 202 in the first auxiliary conveying device assembly 21, so that the initial position of the first aluminum profile 81 is obtained. The main conveying device 1 is started, the main conveying device 1 conveys backwards to drive all the auxiliary conveying device assemblies 2 to synchronously convey backwards, and the first aluminum profile 81 is conveyed to the bending device 3 matched with the first auxiliary conveying device assembly 21. At this time, the main conveyor 1 stops moving, and all the bending devices 3 start moving, wherein the two sets of bending devices 3 respectively engaged with the first auxiliary conveyor 201 and the second auxiliary conveyor 202 in the first auxiliary conveyor assembly 21 bend both ends of the first aluminum profile 81 at one time. After bending, the second aluminum profile 82 is placed at the initial position of the first aluminum profile 81. The bending device 3 is reset and stops moving. At this time, the main conveyor 1 is conveyed backward again, the end of the first aluminum profile 81 is conveyed to the bending device 3 corresponding to the second auxiliary conveyor 22 under the conveying action of the second auxiliary conveyor 22, and at the same time, the first auxiliary conveyor 21 drives the end of the second aluminum profile 82 to convey to the position of the bending device 3 corresponding to the first auxiliary conveyor 21. The first aluminum profiles 81 are delivered to the two sets of bending devices 3 corresponding to the second auxiliary conveyor assembly 22 while the second aluminum profiles 82 are delivered to the two sets of bending devices 3 corresponding to the first auxiliary conveyor assembly 21. The main conveyor 1 stops moving and all the bending devices 3 are activated again to perform a second bending of the first aluminium profiles 81 and a first bending of the second aluminium profiles 82. After bending, the bending apparatus 3 is reset, and the third aluminum profile 8 is placed at the initial position of the first aluminum profile 81, and the first aluminum profile 81 is taken out. And sequentially bending the two ends of the aluminum profiles 8 for multiple times according to the steps.

As shown in fig. 4, the present embodiment discloses a specific bending apparatus 3, which includes a spacing pair roller and a movable roller 32. The limiting pair rollers comprise an upper limiting roller 311 and a lower limiting roller 312, the upper limiting roller 311 and the lower limiting roller 312 are arranged up and down, and the unbent area in the end part of the aluminum profile 8 can stretch out from the gap between the corresponding upper limiting roller 311 and the lower limiting roller 312. The locus of the lifting movement of the movable roller 32 can intersect with the unbent area of the end of the aluminum profile 8 protruding out of the gap.

Before the aluminum profile 8 is bent, the distance between the upper limiting roller 311 and the lower limiting roller 312 is adjusted according to the specification of the aluminum profile 8, so that the aluminum profile 8 can just pass through the distance in the conveying process, when the end part of the aluminum profile 8 is conveyed between the upper limiting roller 311 and the lower limiting roller 312, the main conveying device 1 stops working, the movable roller 32 moves up or down and acts on an unbent area in the end part of the aluminum profile 8, and the area is bent upwards or downwards.

As shown in fig. 1 and 2, the present embodiment discloses a specific manner of linkage of the main conveyor 1, the first auxiliary conveyor assembly 21, and the second auxiliary conveyor assembly 22.

The main conveying device 1, the first auxiliary conveying device assembly 21 and the second auxiliary conveying device assembly 22 are all belt conveying devices or chain plate type conveyors. The driving wheel of the main conveying device 1, the driving wheel of the first auxiliary conveying device 201 in the first auxiliary conveying device assembly 21, and the driving wheel of the second auxiliary conveying device 202 in the first auxiliary conveying device assembly 21 are connected through a driving shaft 91. The driving pulley of the first auxiliary conveyor 201 in the second auxiliary conveyor assembly 22 is linked with the driving shaft 91 through the first belt conveyer 93. The driving pulley of the second auxiliary conveyor 202 in the second auxiliary conveyor assembly 22 is linked with the driving shaft 91 through a second belt conveyor (not shown). All belt conveyors all have the same structure, and are prior art, including the belt and the action wheel, follow driving wheel of cover setting in the belt.

The driving shaft 91 rotates to synchronously drive the driving wheel of the main conveying device 1 to rotate, and the driving shaft 91 rotates to synchronously drive the driving wheel of the first auxiliary conveying device 201 and the driving wheel of the second auxiliary conveying device 202 in the first auxiliary conveying device assembly 21 to rotate, so that the synchronous movement of the main conveying device 1 and the first auxiliary conveying device assembly 21 is realized; meanwhile, the driving shaft 91 rotates to drive the first belt conveyer 93 and the second belt conveyer to synchronously transmit, so as to drive the driving wheel of the first auxiliary conveyer 201 and the driving wheel of the second auxiliary conveyer 202 in the second auxiliary conveyer assembly 22 to synchronously rotate, and realize synchronous motion of the main conveyer 1, the first auxiliary conveyer assembly 21 and the second auxiliary conveyer assembly 22.

Because the end part of the aluminum profile 8 is bent for multiple times at different section positions of the aluminum profile 8, and after the aluminum profile 8 is bent once, the unbent area of the aluminum profile is reduced certainly, the invention ensures that the distance between the first auxiliary conveying device 201 and the second auxiliary conveying device 202 in the front group of auxiliary conveying device assemblies 2 is larger than the distance between the first auxiliary conveying device 201 and the second auxiliary conveying device 202 in the rear group of auxiliary conveying device assemblies 2 by linking the main conveying device 1 and each auxiliary conveying device assembly 2, and meets the primary condition that the two ends of the aluminum profile 8 are synchronously bent for multiple times. The main conveying device 1 of the invention provides continuous conveying for the aluminum profile 8, each auxiliary conveying device component of the invention can realize the support of the end part of the aluminum profile 8 and match the main conveying device 1 to synchronously convey the aluminum profile 8 due to the linkage with the main conveying device 1, the auxiliary conveying device is utilized to share the load of the main conveying device 1, and the stability of the conveying of the aluminum profile 8 is ensured. Because the distance between the first auxiliary conveying device 201 and the second auxiliary conveying device 202 in the front group of auxiliary conveying device assemblies 2 is larger than the distance between the first auxiliary conveying device 201 and the second auxiliary conveying device 202 in the rear group of auxiliary conveying device assemblies 2, and each group of auxiliary conveying device assemblies 2 is matched with the corresponding bending device 3, the invention ensures that the end part of the aluminum profile 8 is only matched with the auxiliary conveying device assembly matched with the group of bending devices 3 when the aluminum profile 8 is matched and bent with the corresponding bending device 3, and is the key for realizing the repeated and sequential bending of the two ends. In addition, the main conveying device 1 and the bending devices 3 are adopted to alternately carry out conveying and bending, the main conveying device 1 stops once, each group of the bending devices 3 can be ensured to work synchronously once, aluminum profiles 8 of different roots are correspondingly bent respectively, the main conveying device 1 moves once, all the bending devices stop, new aluminum profile 8 feeding, aluminum profile synchronous blanking after bending completion and synchronous movement of other aluminum profiles 8 in bending to the next bending section can be realized, and therefore sequential bending of a plurality of aluminum profiles 8 is realized, and the industrial flow property is greatly improved.

Example 2

As shown in fig. 3, the present embodiment is different from the above embodiments in that: the axle shaft 91 is driven in its motion by an axle shaft drive. The drive shaft drive arrangement includes a drive shaft drive pulley linkage assembly 911, a drive shaft drive pinion 912, a drive shaft drive bull gear 913, a drive shaft drive sheave 914, a drive shaft drive dial 915, and a drive shaft drive connection shaft 916. The driving shaft 91 is linked with the driving shaft driving pinion 912 through a driving shaft driving pulley linkage assembly 911, the driving shaft driving pinion 912 is meshed with the driving shaft driving gearwheel 913, the driving shaft driving sheave 914 is linked with the driving shaft driving gearwheel 913 through a driving shaft driving connecting shaft 916, and a shift lever in the driving shaft driving dial 915 can be matched with the driving shaft driving sheave 914. The drive shaft drive pulley linkage assembly 911 is conventional and is structurally similar to the belt conveyor described above.

As shown in fig. 4, the movable roller 32 is driven by a lifting device to move up and down, and the lifting device includes a connecting rod shaft 941, a first incomplete gear 942, a first driven linkage gear 943, a second driven linkage gear 944, a first pulley linkage assembly 945, a rack 946, a third incomplete gear 947, a third driven linkage gear 948, a first linkage shaft 949, and a second linkage shaft 9410.

The driving shaft driving dial 915 and the first partial gear 942 are linked by a connecting rod shaft 941. First incomplete gear 942 can mesh with first driven linkage gear 943, first driven linkage gear 943 meshes with second driven linkage gear 944, second driven linkage gear 944 meshes and links through first universal driving shaft 949 with the action wheel in first belt pulley linkage assembly 945, the driven wheel in first belt pulley linkage assembly 945 links through second universal driving shaft 9410 with third incomplete gear 947, third incomplete gear 947 meshes with rack 946, third driven linkage gear 948 in turn, third driven linkage gear 948 meshes with rack 946. The movable roller 32 is mounted on the rack 946.

The invention specifically introduces a working mode of realizing alternate conveying and bending by adopting the linkage structure.

The motor rotates to drive the connecting rod shaft 941 to rotate, the connecting rod shaft 941 rotates to drive the driving shaft driving dial 915 to rotate, and when the driving shaft driving dial 915 rotates until a shift lever eccentrically connected with the driving shaft driving sheave 914 is matched with the driving shaft driving sheave 914, the driving shaft driving sheave 914 of the embodiment is preferably provided with four equal-angle groove bodies, and sheaves of other existing structures should also be within the protection scope of the present invention.

Each time the driving shaft driving dial 915 rotates one turn to drive the driving shaft driving sheave 914 to rotate by the same angle, and it is ensured that the smooth section of the first incomplete gear 942 is always opposite to the first driven linkage gear 943 in the rotation process of the driving shaft driving sheave 914, and the first incomplete gear 942 in this embodiment includes a smooth section and a sawtooth section. The driving shaft driving grooved pulley 914 angular motion drives the driving shaft driving large gear 913 to move synchronously, drives the driving shaft driving small gear 912 engaged with the driving shaft driving large gear 913 to rotate, drives the driving shaft 91 to rotate through the driving shaft driving belt pulley linkage assembly 911, the main conveying device 1 and each auxiliary conveying device assembly 2 synchronously convey, because of this time period, the smooth section of the first incomplete gear 942 is always opposite to the first driven linkage gear 943, and the bending device 3 stops. When the drive shaft drive dial 915 rotates out of engagement with the drive shaft drive sheave 914, the drive shaft drive sheave 914 stops, and the primary conveyor 1, each secondary conveyor assembly 2, stops operating. At this time, the sawtooth section of the first incomplete gear 942 is just meshed with the first driven linkage gear 943, the first incomplete gear 942 rotates to drive the first driven linkage gear 943 to rotate, the second driven linkage gear 944 meshed with the first driven linkage gear 943 is driven to rotate synchronously, the second driven linkage gear 944 rotates to drive the first pulley linkage assembly 945 to rotate synchronously, and when the first incomplete gear 942 rotates one complete sawtooth section, the first driven linkage gear 943 and the second driven linkage gear 944 both rotate half a turn, that is, each of the driving and driven wheels in the first pulley linkage assembly 945 rotates half a turn, and each of the third incomplete gears 947 corresponding to the first pulley linkage assembly 945 rotates half a turn. The third incomplete gear 947 of the present invention includes two identical smooth segments and two identical sawtooth segments, which are alternately disposed. In the process of half rotation of the third incomplete gear 947, the third incomplete gear 947 is alternately meshed with the rack 946 and the third driven linkage gear 948, so that the rack 946 completes one reciprocating motion in the vertical direction. The gear structure of the present embodiment is described by taking an example in which the rack 946 moves downward first and then returns upward. If the rack 946 moves upward and then returns downward, it is possible to use a reversing gear set between the driven gear and the third partial gear 947 in the first pulley linkage assembly 945. The reversing gear set comprises two mutually meshed reversing gears, one of the reversing gears is sleeved in the second linkage shaft 9410, and the other reversing gear is linked with a driven wheel of the first belt pulley linkage component 945 through a transition shaft. In this embodiment, the rack 946 moves downward and then moves upward to return, so that the movable roller 32 is driven to move downward and then move upward to return, and the movable roller 32 returns after a section of unbent area extending out of the movable roller 32 in the aluminum profile 8 is bent downward. Thereby completing a complete first conveying and second bending action. As shown in fig. 11, it is needless to say that the present invention may employ a rack 946 structure with saw teeth on both sides to engage with the third incomplete gear 947 instead of the engagement among the rack 946, the third incomplete gear 947, and the third driven linked gear 948.

After the third incomplete gear 947 rotates half a turn and the rack 946 returns to the original position, the driving shaft driving dial 915 rotates to the position where the driving shaft driving sheave 914 is engaged twice, and the smooth section of the first incomplete gear 942 is opposite to the first driven linkage gear 943 again, so that the next first conveying and second bending operations are performed.

By adopting the mechanical transmission matching mode, the sequential continuous operation of the first conveying and the second bending of the aluminum profile 8 is realized, and the industrial automation level of the processing, bending and forming of the aluminum profile 8 is improved. When the curvature of the aluminum profile 8 needs to be adjusted, the displacement of the rack 946 can be changed by only changing the specifications of the rack 946, the third incomplete gear 947 and the third driven linkage gear 948.

Of course, the present invention can employ a driveshaft drive incomplete gear in place of the driveshaft drive dial 915 and a driveshaft drive driven linked gear in place of the driveshaft drive sheave 914. Thus, the arc length of the smooth section and the sawtooth section in the incomplete gear driven by the driving shaft is the same, and the arc length of the smooth section and the sawtooth section in the first incomplete gear 942 is the same.

The invention also provides a mechanical transmission matching mode through the numerical control system, and the driving shaft driving device comprises a servo motor or a stepping motor. The movable roller 32 is driven to move up and down by the lifting device. The lifting device comprises one of a servo cylinder, a servo oil cylinder and an electric push rod. The driving shaft driving device and the lifting device are both electrically connected with the PLC numerical control center, and the driving shaft driving device and the lifting device are driven to move by the PLC numerical control center.

Example 3

As shown in fig. 5, the present embodiment is different from the above embodiments in that: the bending device 3 further comprises a bending device frame, a limiting roller screw 382, an upper limiting roller connecting arm 383, an upper limiting roller movable block 384, a lower limiting roller connecting arm 385, a lower limiting roller movable block 386 and a movable roller connecting arm 387. The limiting roller screw 382 is mounted on the bending device frame. One end, close to the corresponding auxiliary conveying device, of the upper limiting roller connecting arm 383 is connected with the upper limiting roller 311, one end, far away from the corresponding auxiliary conveying device, of the upper limiting roller connecting arm 383 is connected with the upper limiting roller movable block 384, and the upper limiting roller movable block 384 is matched with the upper end of the limiting roller screw rod 382 in the vertical direction. One end, close to the corresponding auxiliary conveying device, of the lower limiting roller connecting arm 385 is connected with the lower limiting roller 312, one end, far away from the corresponding auxiliary conveying device, of the lower limiting roller connecting arm 385 is connected with the lower limiting roller movable block 386, and the lower limiting roller movable block 386 is matched with the lower end of the limiting roller screw rod 382 in the vertical direction. A horn-shaped channel with one narrow end close to the corresponding auxiliary conveying device and one wide end far away from the corresponding auxiliary conveying device is formed between the upper limiting roller connecting arm 383 and the lower limiting roller connecting arm 385. The movable roller 32 is coupled to the rack 946 via a movable roller coupling arm 387. The upper end of the limiting roller screw rod 382 and the lower end of the limiting roller screw rod 382 have opposite thread directions. Preferably, the device further comprises a slide rod (not shown) with a guide direction parallel to that of the limiting roller screw rod 382, and the upper limiting roller movable block 384 and the lower limiting roller movable block 386 are in sliding fit with the slide rod.

Because the upper end of the limiting roller screw rod 382 and the lower end of the limiting roller screw rod 382 have opposite thread directions, the upper limiting roller movable block 384 and the lower limiting roller movable block 386 can move oppositely or move backwards by rotating the limiting roller screw rod 382, so that the upper limiting roller 311 and the lower limiting roller 312 can move oppositely or backwards, and the purpose of adjusting the gap between the upper limiting roller 311 and the lower limiting roller 312 is achieved. The upper limiting roller 311 and the upper limiting roller connecting arm 383 as well as the lower limiting roller 312 and the lower limiting roller connecting arm 385 can be fixedly connected or detachably connected. Because the trumpet-shaped channel with a narrow end close to the corresponding auxiliary conveying device and a wide end far away from the corresponding auxiliary conveying device is formed between the upper limiting roller connecting arm 383 and the lower limiting roller connecting arm 385, an avoiding space is provided for a bent area in the aluminum profile 8, and barrier-free smooth conveying of the aluminum profile 8 is guaranteed. Of course, the upper limiting roller connecting arm 383 and the lower limiting roller connecting arm 385 can also be of an angle bending structure or a step structure, and a variable diameter channel with one narrow end close to the corresponding auxiliary conveying device and one wide end far away from the corresponding auxiliary conveying device is formed between the upper limiting roller connecting arm 383 and the lower limiting roller connecting arm 385. The embodiment is more suitable for bending the section with a plurality of small radiuses.

Example 4

As shown in fig. 6, the present embodiment is different from the above-described embodiments in that: the rack 946 includes a plurality of saw tooth segments from top to bottom along the length of the rack, each saw tooth segment having a different saw tooth gauge. Each toothed segment is fitted with a movable roller 32. The rack 946 is in sliding engagement with the frame in the vertical direction.

The present invention divides the rack 946 into a plurality of saw tooth segments of different specifications along the length direction thereof, and one movable roller 32 is engaged with each saw tooth segment. When the curvature of the aluminum profile 8 needs to be adjusted, the change of the displacement of the rack 946 can be realized by selecting the corresponding sawtooth section and matching the sawtooth section with the corresponding third incomplete gear 947 and the corresponding third driven linkage gear 948. Furthermore, the requirement that one rack 946 can meet various strokes is met, the use flexibility of the rack 946 is improved, and the replacement times of the rack 946 are reduced. Preferably, a rubber layer is disposed between the rack 946 and the frame to increase sliding resistance between the rack 946 and the frame.

Example 5

As shown in fig. 7 and 8, the present embodiment is different from the above embodiments in that the main conveying device 1 is a chain scraper conveyor, and the fastening devices 4 are arranged on the main conveying device 1 at intervals, and the fastening devices 4 are used for locking the position of the aluminum profile 8. Preferably, the spacing between adjacent fastening devices 4 is equal to the length delivered by each movement of the main conveyor 1. The fastening device 4 comprises a driving rotation shaft 401, a linkage chaining wheel assembly 402, a connection shaft 403, a first bevel gear 404, a second bevel gear 405, a transmission shaft 406, a rotation shaft 407, a transmission rod 408, a moving rod 409, an inclined guide rail 410, a horizontal slider 411, and a blocking plate 412. The driving rotating shaft 401 is opposite to the baffle 412, one end of the driving rotating shaft 401 facing the baffle 412 is a screw rod end, and the horizontal sliding block 411 is matched with the screw rod end. The connecting shaft 403 is located above the rotating shaft and is linked by the linked chaining wheel assembly 402. The first bevel gear 404 is sleeved on the connecting shaft 403, the second bevel gear 405 is engaged with the first bevel gear 404 in a sleeved mode, the second bevel gear 405 is sleeved on the transmission shaft 406, at least one rotating rod 407 is connected to the transmission shaft 406 in a rotating mode, and the rotating rod 407, the transmission rod 408, the moving rod 409 and the inclined guide tracks 410 correspond to one another in a one-to-one mode. The end of the rotating rod 407 is hinged to one end of the corresponding transmission rod 408, the other end of the transmission rod 408 is hinged to the higher end of the moving rod 409, and the lower end of the moving rod 409 extends through the inclined guide rail 410 in the direction of the position of the baffle 412. The horizontal sliding block 411 and one end of the moving rod 409 close to the baffle 412 are both elastic ends, such as rubber ends. The linkage chain wheel assembly 402 is conventional and includes a chain, and a driving chain gear and a driven chain gear sleeved in the chain. All the shafts of the invention are rotationally connected with the frame through bearings.

When it is desired to bend the aluminium profile 8, the invention places the aluminium profile 8 on the fastening means 4 located at the foremost end of the main conveyor 1. Specifically, the middle area of the aluminum profile 8 is placed between the active turning shaft 401 and the baffle 412. By rotating the driving rotating shaft 401, the horizontal sliding block 411 is driven to move towards the position direction of the baffle 412, meanwhile, the driving rotating shaft 401 rotates to drive the linkage chain wheel assembly 402 to transmit, the connecting shaft 403 is driven to rotate synchronously, the first bevel gear 404 and the second bevel gear 405 are driven to rotate, reversing rotation of the transmission shaft 406 is realized, the transmission shaft 406 rotates to drive each rotating rod 407 to rotate, rotation through the transmission rod 408 realizes that each moving rod 409 inclines downwards along the inclined guide track 410 to move close to the baffle 412, when the end part of each moving rod 409 and the end part of the horizontal sliding block 411 abut against the aluminum profile 8, the aluminum profile 8 is clamped between the baffle 412, the moving rod 409 and the driving rotating shaft 401, and locking of the aluminum profile 8 is completed. After the aluminum profile 8 is bent, the driving rotating shaft 401 is rotated reversely, so that the moving rod 409 and the horizontal sliding block 411 move reversely, and the aluminum profile 8 is unlocked. All of the screws of the present invention are preferably ball screws, and other prior art screws are also within the scope of the present invention.

When the aluminum profile 8 with a long length is bent, the aluminum profile 8 is subjected to external force during bending stress and conveying under the driving of a motor, and position movement is easy to occur, so that the aluminum profile cannot be accurately moved to a bending point. According to the invention, the fastening devices 4 are arranged on the main conveying device 1 at intervals, so that the fastening of the aluminum profile 8 is realized, and the position stability of the aluminum profile in the conveying process is ensured. Because the distance between the adjacent fastening devices 4 is equal to the length of the main conveying device 1 conveyed by each movement, the fastening devices 4 play a role in positioning while fastening, ensure that each aluminum profile 8 is bent in sequence and smoothly, fix the aluminum profiles 8 at the point positions of the main conveying device 1 and facilitate the feeding of workers.

By adopting the structure of the fastening device 4, the multipoint and multidirectional clamping stress of the aluminum profile 8 can be realized by rotating the driving rotating shaft 401, and the clamping stability is improved. Because the moving rod 409 of the invention is positioned above the driving rotating shaft 401, when the horizontal sliding block 411 and the moving rod 409 act on the aluminum profile 8 at the same time, all stress points on the aluminum profile 8 are staggered on a vertical surface, and all stress points are connected with each other to form a surface, so that the clamping stabilizing effect can be further improved. Because the ends of the horizontal sliding block 411 and the moving rod 409 close to the baffle 412 are elastic ends, on one hand, the elastic contact among the horizontal sliding block 411, the moving rod 409 and the aluminum profile 8 is ensured, and the extrusion deformation caused by rigid contact is avoided; on the other hand, the defect that the aluminum profile 8 cannot be simultaneously acted due to different displacement amounts between the horizontal slider 411 and the moving rod 409 can be avoided. This embodiment is more suitable for the locking of the profile of the non-continuous smooth surface of uneven side.

Example 6

As shown in fig. 9 and 10, the present embodiment is different from the above embodiments in that: the bending device 3 comprises an upper movable limiting roller (not marked in the figure), a lower movable limiting roller 352, a fixed limiting roller 353, a central support 354, an upper arc disc 3581 and a lower arc disc 3582, wherein the fixed limiting roller 353 is arranged on the central support 354, and the upper movable limiting roller 351 and the lower movable limiting roller 352 are respectively connected with the upper arc disc 3581 and the lower arc disc 3582 and are respectively positioned at the upper end and the lower end of the fixed limiting roller 353. The center of the horizontal projection of the upper arc disc 3581 and the center of the horizontal projection of the lower arc disc 3582 coincide with the center of the horizontal projection of the fixed limiting roller 353. Gaps for the aluminum profile 8 to pass through are formed between the upper arc disc 3581 and the central support 354 and between the lower arc disc 3582 and the central support 354.

The bending device 3 further comprises two sets of disk connecting gears 371, wherein the two sets of disk connecting gears 371 are respectively located at the starting end and the terminating end of the main conveying device 1. The upper arc disc 3581 and the lower arc disc 3582 are both connected with the disc connecting gear 371 through the connecting reinforcing rod 39.

Specifically, the upper arc disc 3581 and the lower arc disc 3582 are both provided with sliding grooves 3541, the end portions of the upper movable limiting roller 351 and the lower movable limiting roller 352 respectively penetrate through the corresponding sliding grooves 3541, and fastening nuts 356 are in threaded fit in regions, which penetrate through the corresponding sliding grooves 3541 and the corresponding sliding grooves 3541, in the end portions of the upper movable limiting roller 351 and the lower movable limiting roller 352.

Drive disc connection gear 371 through servo motor and rotate, go up circular arc dish 3581, circular arc dish 3582 rotates round fixed spacing roller 353 down, the spacing roller 351 of activity in the drive, the spacing roller 352 of activity rotates round fixed spacing roller 353 down, the realization stretches out in the aluminium alloy 8 and goes up the spacing roller 351 of activity and stretch out down the spacing roller 352 of activity and the unbent region of fixed spacing roller 353 and go up or the downward bending in activity spacing roller 353 and fixed spacing roller 353 or aluminium alloy 8 down, accomplish crooked back, servo motor antiport, realize going up the spacing roller 351 of activity, the reseing of the spacing roller 352 of activity down.

Example 7

As shown in fig. 9 and 10, the present embodiment is different from the above embodiments in that: the third incomplete gear 947 is alternately meshed with the disc connecting gear 371 and the third driven linkage gear 948, and the disc connecting gear 371 is meshed with the third driven linkage gear 948;

when third incomplete gear 947 meshes with disc connecting gear 371, the motor forward rotation drives third incomplete gear 947 forward rotation, drives disc connecting gear 371 antiport, drives circular arc dish 3581, circular arc dish 3582 antiport, when third incomplete gear 947 meshes with three driven linkage gear 948, third driven linkage gear 948 reversal drives disc connecting gear 371 forward reset, goes up circular arc dish 3581, circular arc dish 3582 forward rotation resets.

The cooperation mode that this embodiment passes through disc connection gear 371, incomplete gear 947 of third, the mutual each other of third driven linkage gear 948 drives activity limiting roller 351 or activity limiting roller 352 down and just reverses around central support 354, realizes stretching out activity limiting roller 351 and fixed limiting roller 353 or stretching out in the aluminium alloy 8 down the unbent region of activity limiting roller 352 and fixed limiting roller 353 and upwards or the downward bending in stretching out in aluminium alloy 8. Preferably, the disc connecting gear 371 and the third driven linkage gear 948 of the present invention are rotatably connected to the frame through a linkage shaft, respectively, and a damper is provided between the linkage shaft and the frame.

In conclusion, the bending device has the technical effects of accurately and stably realizing the synchronous repeated bending of the two ends of the section bar and realizing the sequential bending of a plurality of section bars in flowing water.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A synchronous bending forming mechanism for multiple positions at two ends of a section is characterized by comprising a main conveying device, an auxiliary conveying device assembly and a bending device;

the auxiliary conveying device assemblies are sequentially distributed from front to back along the conveying direction of the main conveying device, each auxiliary conveying device assembly comprises a first auxiliary conveying device and a second auxiliary conveying device which are symmetrically distributed on two sides of the main conveying device, and the conveying directions of the first auxiliary conveying device, the second auxiliary conveying device and the main conveying device are consistent and move synchronously; the distance between the first auxiliary conveying device and the second auxiliary conveying device in the front group of auxiliary conveying device assemblies is larger than the distance between the first auxiliary conveying device and the second auxiliary conveying device in the rear group of auxiliary conveying device assemblies; the middle area of the section bar is positioned on the main conveying device, and the end part of the section bar is positioned on the corresponding auxiliary conveying device; the auxiliary conveying devices correspond to the bending devices one by one; the bending device is used for bending the part of the end part of the section bar, which extends out of the unbent area or the unbent area of the corresponding auxiliary conveying device; each conveying device is linked with the bending device, and the conveying work of each conveying device and the bending work of the bending device are ensured to be carried out alternately.

2. A multi-end synchronous bending forming mechanism according to claim 1, characterized in that fastening devices are arranged on the main conveying device at intervals and used for locking the position of the section.

3. The mechanism for synchronously bending and forming a plurality of positions at two ends of a profile according to claim 2, wherein the fastening device comprises a driving rotating shaft, a linkage chain wheel assembly and a connecting shaft; the device comprises a first bevel gear, a second bevel gear, a transmission shaft, a rotating rod, a transmission rod, a moving rod, an inclined guide rail, a horizontal sliding block and a baffle plate; the driving rotating shaft is opposite to the baffle, one end of the driving rotating shaft facing the baffle is a screw rod end, and the horizontal sliding block is matched with the screw rod end; the connecting shaft is positioned above the rotating shaft and is linked through a linkage chain wheel assembly; the first bevel gear is sleeved on the connecting shaft, the second bevel gear is meshed with the first bevel gear sleeve, the second bevel gear is sleeved on the transmission shaft, at least one rotating rod is rotatably connected to the transmission shaft, and the rotating rod, the transmission rod, the moving rod and the inclined guide rails correspond to one another one by one; the end part of the rotating rod is hinged with one end of the corresponding transmission rod, the other end of the transmission rod is hinged with one end, with a higher position, of the moving rod, and the end, with the lower position, of the moving rod penetrates through the inclined guide track and extends towards the position direction of the baffle; and one ends of the horizontal sliding block and the moving rod, which are close to the baffle, are elastic ends.

4. The mechanism for synchronously bending and forming the two ends of the section bar according to claim 1, wherein the main conveying device, the first auxiliary conveying device and the second auxiliary conveying device are all belt conveying devices or chain plate conveyors; the driving wheel of the main conveying device, the driving wheel of the first auxiliary conveying device in the auxiliary conveying device assembly at the forefront position and the driving wheel of the second auxiliary conveying device in the auxiliary conveying device assembly at the forefront position are connected through a driving shaft; the driving wheels of the first auxiliary conveying devices in the other auxiliary conveying device assemblies are linked with the driving shaft through a first belt conveying device or a first chain conveying device respectively; and driving wheels of second auxiliary conveying devices in the other auxiliary conveying device assemblies are linked with the driving shaft through a second belt conveying device or a second chain conveying device respectively.

5. The mechanism for synchronously bending and forming the two ends of the section bar according to claim 4, wherein the bending device comprises a limiting pair roller and a movable roller; the limiting pair rollers comprise upper limiting rollers and lower limiting rollers, the upper limiting rollers and the lower limiting rollers are arranged up and down, and the unbent areas in the end parts of the sectional materials can extend out of gaps between the corresponding upper limiting rollers and the corresponding lower limiting rollers; the path of the lifting movement of the movable roller can intersect the unbent region of the end of the profile that protrudes through the gap.

6. The forming mechanism for synchronously bending and forming the two ends of the section bar according to claim 5, wherein the driving shaft drives the forming mechanism to move through a driving shaft driving device; the driving shaft driving device comprises a servo motor or a stepping motor;

or the driving shaft driving device comprises a driving shaft driving belt pulley linkage assembly, a driving shaft driving pinion, a driving shaft driving gearwheel, a driving shaft driving sheave and a driving shaft driving drive plate; the driving shaft is in linkage with the driving shaft driving pinion through the driving shaft driving belt pulley linkage assembly, the driving shaft driving pinion is meshed with the driving shaft driving gearwheel, the driving shaft driving sheave is in linkage with the driving shaft driving gearwheel through a driving shaft driving connecting shaft, and the driving shaft driving plate is matched with the driving shaft driving sheave.

7. The forming mechanism for synchronously bending and forming the two ends of the section bar according to claim 6, wherein the movable roller is driven to move up and down by a lifting device; the lifting device comprises one of a servo cylinder, a servo oil cylinder and an electric push rod;

8. The mechanism for synchronously bending and forming the two ends of the section bar according to claim 7, wherein the bending device further comprises a bending device frame, a limiting roller screw rod, an upper limiting roller connecting arm, an upper limiting roller movable block, a lower limiting roller connecting arm, a lower limiting roller movable block and a movable roller connecting arm;

9. The mechanism for synchronously bending and forming a plurality of positions at two ends of a section bar according to claim 1, wherein the bending device comprises an upper movable limiting roller, a lower movable limiting roller, a fixed limiting roller, a central bracket, an upper arc disc, a lower arc disc and a disc connecting gear,

the fixed limiting roller is arranged on the central support, and the upper movable limiting roller and the lower movable limiting roller are respectively connected with the upper arc disc and the lower arc disc and are respectively positioned at the upper end and the lower end of the fixed limiting roller; the center of the projection of the upper arc disc in the horizontal direction, the center of the projection of the lower arc disc in the horizontal direction and the center of the projection of the fixed limiting roller in the horizontal direction are superposed; gaps for sectional materials to pass through are formed between the upper arc disc and the central bracket and between the lower arc disc and the central bracket;

the two groups of disc connecting gears are respectively positioned at the starting end of the main conveying device and the terminating end of the main conveying device; the upper arc disc and the lower arc disc are connected with the disc connecting gear through connecting reinforcing rods.

10. A method for sequentially bending a plurality of aluminum profiles for a plurality of times by adopting a plurality of synchronous bending forming mechanisms at two ends of the profiles as claimed in any one of claims and 1 to 9, which is characterized by comprising the following steps:

placing a first aluminum profile on a main conveying device and an auxiliary conveying device assembly positioned at the forefront, ensuring that the middle area of the first aluminum profile is positioned on the main conveying device, and respectively positioning two ends of the first aluminum profile on a first auxiliary conveying device and a second auxiliary conveying device in the forefront auxiliary conveying device assembly to obtain the initial position of the first aluminum profile;

starting the main conveying device, conveying the main conveying device backwards to drive all auxiliary conveying device assemblies to synchronously convey backwards, and conveying the first aluminum section to a group of bending devices matched with the foremost auxiliary conveying device assembly; at the moment, the main conveying device stops moving, the bending device starts moving, and two ends of the first aluminum profile are bent once; placing a second aluminum profile at the initial position of the first aluminum profile;

thirdly, resetting the bending device and stopping movement; at the moment, the main conveying device conveys backwards to drive the first aluminum profile to convey towards the lower group of bending devices and drive the second aluminum profile to convey towards the front group of bending devices;

step four, a first aluminum profile is conveyed to a position matched with the next group of bending devices, and a second aluminum profile is conveyed to a position matched with the bending device of the foremost auxiliary conveying device component; the main conveying device stops moving, the bending device is started, the first aluminum profile is bent for the second time, and the second aluminum profile is bent for the first time;

and step five, sequentially bending the two ends of the aluminum profiles for multiple times according to the steps.