CN221158387U - Hollow glass aluminum frame bending machine - Google Patents

Abstract

The utility model discloses a hollow glass aluminum frame bending machine which comprises a frame and an inclined plate which is obliquely arranged on the frame and is of an L-shaped structure, wherein a guide device, a pressing device, a bending device, a cutting device and a sizing device are sequentially arranged on the inclined plate along the horizontal direction, a first avoiding hole is formed in the inclined plate, the guide device comprises a lower conveying mechanism arranged in the first avoiding hole and an upper conveying mechanism capable of moving towards the direction of the lower conveying mechanism, the upper conveying mechanism and the lower conveying mechanism are matched with each other to convey aluminum strips forwards, a plurality of first limiting rollers and a plurality of second limiting rollers are arranged on the downstream side of the lower conveying mechanism, the axial lead of each first limiting roller is perpendicular to the axial lead of each second limiting roller, and the first limiting rollers and the second limiting rollers are staggered. The hollow glass aluminum frame bending machine provided by the utility model improves the feeding efficiency of aluminum strips, avoids the position deviation of the aluminum strips during conveying, and ensures the bending precision of the aluminum frames.

Description

Hollow glass aluminum frame bending machine

Technical Field

The utility model relates to the technical field of aluminum frame processing equipment for hollow glass, in particular to a hollow glass aluminum frame bending machine.

Background

The hollow glass is high-efficiency sound-insulation heat-insulation glass which is manufactured by bonding two (or three) glass sheets with an aluminum frame containing a drying agent by using a high-strength high-air-tightness composite bonding agent. The aluminum frame is formed by bending a vertical aluminum strip for a plurality of times by 90 degrees, and the structure of the aluminum frame is shown in figure 1. The common aluminum frame bending machine is fed through the mode of manual pushing, the feeding efficiency is low, and when the manual pushing is easy, the aluminum strips are offset, so that the bending precision is low, and the processing quality of the aluminum frame is affected.

In order to improve bending precision, patent document with application number 201922203937.X discloses a bending machine for producing glass aluminum frames, and specifically discloses: including the processing platform, be provided with the subassembly of buckling that is used for buckling the aluminium strip on the processing platform, processing bench just is located one side of buckling the subassembly and is provided with the clamping feeding subassembly that is used for pressing from both sides tight aluminium strip feeding to the subassembly of buckling, clamping feeding subassembly includes the mobile station, transversely sets up the open slot at the mobile station upper surface along, sets up fixed cylinder on the mobile station lateral wall, connects the dead lever at fixed cylinder output, sets up the fixed plate in the open slot and sets up the actuating cylinder at processing bench upper surface. During the use, the extension rod of fixed cylinder stretches out, and fixed aluminum strip is held to fixed plate and mobile station, then the extension rod of actuating cylinder stretches out the drive mobile station and to buckle the subassembly feeding to combine the figure, it can be seen that this bender is used in glass aluminium frame production is through holding the aluminum strip earlier, propelling movement aluminum strip to buckle the subassembly, after once buckling, needs waiting for fixed plate and mobile station to loosen the aluminum strip, and actuating cylinder returns and just can carry out the propelling movement of next time, and this kind of automatic feeding's mode can not realize continuous feeding, and its feeding efficiency is lower.

It can be seen that there is a need for improvements and improvements in the art.

Disclosure of utility model

In view of the shortcomings of the prior art, the utility model aims to provide a hollow glass aluminum frame bending machine, which aims to improve the feeding efficiency of aluminum strips, avoid the position deviation of the aluminum strips during conveying and ensure the bending precision of the aluminum frames.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a cavity glass aluminum frame bender, includes frame and slope setting in the frame and be the inclined plate of L type structure, inclined plate sets gradually guider, closing device, bending device, cutting device and scale device along the horizontal direction, it has first hole of dodging to open on the inclined plate, guider is including locating the downthehole lower conveying mechanism of first dodging and can down conveying mechanism direction removal go up conveying mechanism, goes up conveying mechanism and lower conveying mechanism cooperation and carries the aluminium strip forward, and lower conveying mechanism's downstream side is equipped with a plurality of first spacing rollers and second spacing rollers, and the axial lead of first spacing roller is perpendicular with the axial lead of second spacing roller, and first spacing roller and second spacing roller stagger the setting.

Further, lower conveying mechanism includes first mounting bracket, is equipped with rotatable first conveyer belt on the first mounting bracket, is equipped with the backup pad that is used for bearing first conveyer belt on the first mounting bracket.

Further, go up conveying mechanism including locating the alignment jig on the hang plate and locating the second mounting bracket on the alignment jig with slidable, be equipped with rotatable second conveyer belt on the second mounting bracket, be equipped with in the second conveyer belt and be used for pressing to the clamp plate of second conveyer belt, be equipped with a plurality of springs between clamp plate and the second mounting bracket.

Further, the regulating frame comprises a mounting plate and a fixing plate vertically connected with the mounting plate, two first inverted T-shaped grooves are formed in the mounting plate, first T-shaped nuts are slidably connected with each first inverted T-shaped groove, the second mounting frame is arranged on the first T-shaped nuts, an adjusting screw is connected to the fixing plate in a threaded mode, and the tail ends of the adjusting screw are rotationally connected with the second mounting frame.

Further, the inclined plate comprises a long side face and a short side face, a plurality of second avoidance holes are formed in the long side face, a first positioning frame is arranged on each second avoidance hole, a first connecting shaft capable of sliding along the length direction of the first positioning frame is arranged on the first positioning frame, the first connecting shaft is rotationally connected with the first limiting roller, and the axial lead of the first limiting roller is perpendicular to the long side face.

Further, a plurality of third avoidance holes are formed in the short side face, a second positioning frame is arranged on each third avoidance hole, a second connecting shaft capable of sliding along the length direction of the second positioning frame is arranged on each second positioning frame, the second connecting shaft is rotationally connected with the second limiting roller, and the axial lead of the second limiting roller is perpendicular to the short side face.

Further, the sizing device further comprises a scale arranged on the long side face and a slide way arranged on the short side face, a first adjusting seat and a second adjusting seat which can slide along the length direction of the slide way are arranged on the slide way, the first adjusting seat is close to the cutting device, a first driving cylinder is arranged on the first adjusting seat, a first baffle is arranged at the tail end of a conveying rod of the first driving cylinder, and a second baffle is arranged on the second adjusting seat.

Further, a first proximity switch is arranged on each of the first baffle and the second baffle.

Further, a support is arranged on the frame, a guide rail is arranged on the support, the cutting device is connected with the guide rail in a sliding manner, and a saw blade is arranged at the conveying end of the cutting device; the inclined plate is provided with a fourth avoiding hole for avoiding the saw blade; the guide rail is provided with a third baffle plate which can move horizontally and is used for limiting the moving direction of the aluminum strip, and the third baffle plate and the saw blade are on the same vertical surface.

Further, a second proximity switch is arranged on the third baffle.

The beneficial effects are that:

According to the hollow glass aluminum frame bending machine provided by the utility model, the lower conveying mechanism and the upper conveying mechanism are arranged to cooperatively convey aluminum strips, the aluminum strips move to the bending device under the limitation of the first limiting roller, the second limiting roller and the inclined plate, and the bending device and the sizing device are matched to bend the aluminum strips with fixed length upwards by 90 degrees, when the aluminum strips are bent next time, the lower conveying mechanism and the upper conveying mechanism continuously push the aluminum strips forwards, the feeding efficiency of the aluminum strips can be improved in a mode of sequentially bending and pushing, the position deviation of the aluminum strips during conveying can be avoided, and the bending precision of the aluminum frames is ensured.

Drawings

Fig. 1 is a front view of an aluminum frame.

Fig. 2 is a structural diagram of the hollow glass aluminum frame bending machine provided by the utility model.

Fig. 3 is an enlarged view at a of fig. 2.

Fig. 4 is a front view of a part of the hollow glass aluminum frame bending machine provided by the utility model.

Fig. 5 is a block diagram of a lower conveying mechanism and an upper conveying mechanism in the hollow glass aluminum frame bending machine.

Fig. 6 is a structural diagram of a sizing device in the hollow glass aluminum frame bending machine.

Fig. 7 is a structural diagram of a third baffle in the hollow glass aluminum frame bending machine provided by the utility model.

Description of main reference numerals: the device comprises a frame 1, a support 11, a guide rail 111, an inclined plate 2, a first avoidance hole 21, a long side 22, a short side 23, a second avoidance hole 24, a third avoidance hole 25, a fourth avoidance hole 26, a guide device 3, a lower conveying mechanism 31, a first mounting frame 311, a first conveying belt 312, a support plate 313, a first driving wheel 314, a first driven wheel 315, a first driving motor 316, an upper conveying mechanism 32, an adjusting frame 321, a mounting plate 3211, a fixing plate 3212, a first inverted T-shaped groove 3213, an adjusting screw 3214, a second mounting frame 322, a second conveying belt 323, a pressing plate 324, a spring 325, a second driving wheel 326, a second driven wheel 327, the second driving motor 328, the first limit roller 33, the first positioning frame 331, the first connecting shaft 332, the second inverted-T-shaped groove 333, the second limit roller 34, the second positioning frame 341, the second connecting shaft 342, the third inverted-T-shaped groove 343, the pressing device 4, the bending device 5, the cutting device 6, the saw blade 61, the sizing device 7, the scale 71, the slide way 72, the fourth inverted-T-shaped groove 721, the first adjusting seat 73, the second adjusting seat 74, the first driving cylinder 75, the first baffle 76, the second baffle 77, the first proximity switch 78, the hand screw 79, the third baffle 8, the second proximity switch 81, the second driving cylinder 82 and the slide table 83.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the utility model provides a hollow glass aluminum frame bending machine, which comprises a frame 1 and an inclined plate 2 which is obliquely arranged on the frame 1 and is of an L-shaped structure, wherein the inclined plate 2 is sequentially provided with a guide device 3, a pressing device 4, a bending device 5, a cutting device 6 and a sizing device 7 along the horizontal direction, a first avoiding hole 21 is formed in the inclined plate 2, the guide device 3 comprises a lower conveying mechanism 31 arranged in the first avoiding hole 21 and an upper conveying mechanism 32 which can move towards the lower conveying mechanism 31, the upper conveying mechanism 32 and the lower conveying mechanism 31 are matched for conveying aluminum strips forwards, a plurality of first limiting rollers 33 and second limiting rollers 34 are arranged on the downstream side of the lower conveying mechanism 31, the axial lead of the first limiting rollers 33 is perpendicular to the axial lead of the second limiting rollers 34, and the first limiting rollers 33 and the second limiting rollers 34 are arranged in a staggered manner.

When in use, the aluminum strip is arranged on the inclined plate 2 with the L-shaped structure and is positioned between the upper conveying mechanism 32 and the lower conveying mechanism 31; the upper conveying mechanism 32 and the lower conveying mechanism 31 are matched for conveying the aluminum strips forwards, and move forwards under the limitation of the first limiting roller 33, the second limiting roller 34 and the two side surfaces of the inclined plate 2, so that the aluminum strips are prevented from being shifted in position in the conveying process, after the aluminum strips enter the cutting device 6, the upper conveying mechanism 32 and the lower conveying mechanism 31 stop conveying, the pressing device 4 is started and presses the aluminum strips, the cutting device 6 cuts off the aluminum strips and the bending device 5 bends the aluminum strips, and thus 90-degree bending is completed; subsequently, the upper conveying mechanism 32 and the lower conveying mechanism 31 are started to convey the aluminum strips forwards, the former 90-degree bending angle reaches the position defined by the sizing device 7, the upper conveying mechanism 32 and the lower conveying mechanism 31 stop conveying again, the bending steps are repeated, the second 90-degree bending is completed, and the cutting device 6 cuts off the aluminum strips until four 90-degree bending is completed, so that the bending of the aluminum frame is completed. Compared with the prior art, the feeding efficiency of aluminum strips can be improved, and the conveying direction of the aluminum strips can be prevented from shifting under the cooperation of the first limiting roller 33, the second limiting roller 34 and the inclined plate 2, so that the bending precision of an aluminum frame is ensured.

In this embodiment, the pressing device 4 may press the pressing block against the aluminum strip by driving the air cylinder to fix the position of the aluminum strip. The bending device 5 is provided with a top block used for supporting the bending inner angle and a swinging arm capable of rotating for 90 degrees so as to realize the upward bending of the aluminum strip for 90 degrees. The compressing device 4 and the bending device 5 are all in the prior art of aluminum frame bending machines, and specific structures and principles thereof are not repeated.

In a preferred embodiment, the lower conveying mechanism 31 includes a first mounting frame 311, a rotatable first conveying belt 312 is disposed on the first mounting frame 311, and a supporting plate 313 for supporting the first conveying belt 312 is disposed on the first mounting frame 311. Specifically, the lower conveying mechanism 31 further includes a first driving wheel 314 rotatably connected to the first mounting frame 311, two first driven wheels 315 rotatably connected to the first mounting frame 311, and a first driving motor 316 connected to the first driving wheel 314, where the first conveying belt 312 is sleeved on the wheel surfaces of the first driving wheel 314 and the two first driven wheels 315. The first driving motor 316 drives the first driving wheel 314 to rotate, the first conveying belt 312 forwards conveys the aluminum strips under the driving of the first driving wheel 314 and the first driven wheel 315, and the supporting plate 313 supports the first conveying belt 312 to ensure that the first conveying belt 312 is contacted with the lower surfaces of the aluminum strips.

Further, the upper conveying mechanism 32 includes an adjusting frame 321 disposed on the inclined plate 2 and a second mounting frame 322 slidably disposed on the adjusting frame 321, a rotatable second conveying belt 323 is disposed on the second mounting frame 322, a pressing plate 324 for pressing the second conveying belt 323 is disposed in the second conveying belt 323, and a plurality of springs 325 are disposed between the pressing plate 324 and the second mounting frame 322. Specifically, the upper conveying mechanism 32 further includes a second driving wheel 326 rotatably connected to the second mounting frame 322, two second driven wheels 327 rotatably connected to the second mounting frame 322, and a second driving motor 328 connected to the second driving wheel 326, and the second conveying belt 323 is sleeved on the tread of the second driving wheel 326 and the tread of the two second driven wheels 327. The second driving motor 328 drives the second driving wheel 326 to rotate, the second conveying belt 323 and the first conveying belt 312 convey the aluminum strips forwards under the driving of the second driving wheel 326 and the second driven wheel 327, and the pressing plate 324 always presses the second conveying belt 323 under the action of the spring 325, so that the contact between the second conveying belt 323 and the upper surfaces of the aluminum strips is ensured.

Through adjusting the position of the second installation frame 322 on the adjusting frame 321, the distance between the first conveying belt 312 and the second conveying belt 323 can be adjusted, and the aluminum strip conveying device is suitable for conveying aluminum strips with different thicknesses. Further, the adjusting frame 321 includes a mounting plate 3211 disposed on the inclined plate 2 and a fixing plate 3212 vertically connected to the mounting plate 3211, two first inverted-T-shaped grooves 3213 are formed in the mounting plate 3211, each first inverted-T-shaped groove 3213 is slidably connected with a first T-shaped nut, the second mounting frame 322 is disposed on the first T-shaped nut, an adjusting screw 3214 is screwed on the fixing plate 3212, and the tail end of the adjusting screw 3214 is rotatably connected with the second mounting frame 322. The adjusting screw 3214 is rotated to adjust the movement of the second mounting bracket 322 in the direction of the first inverted T-shaped groove 3213, and the second mounting bracket 322 is coupled to the first T-shaped nut by a screw to lock the position of the second mounting bracket 322 on the mounting plate 3211.

Alternatively, to avoid scraping the aluminum strip surfaces from the first conveyor belt 312 and the second conveyor belt 323, the first conveyor belt 312 and the second conveyor belt 323 may be made of rubber.

In a preferred embodiment, the inclined plate 2 includes a long side 22 and a short side 23, the long side 22 is provided with a plurality of second avoidance holes 24, each second avoidance hole 24 is provided with a first positioning frame 331, the first positioning frame 331 is provided with a first connecting shaft 332 that can slide along the length direction thereof, the first connecting shaft 332 is rotationally connected with the first limiting roller 33, and the axial lead of the first limiting roller 33 is perpendicular to the long side 22. Specifically, the first positioning frame 331 is provided with a second inverted T-shaped slot 333, the second inverted T-shaped slot 333 is slidably connected with a second T-shaped nut, the first connecting shaft 332 is connected with the second T-shaped nut through a countersunk head screw, and the distance between the first limiting roller 33 and the short side 23 is adjusted to be the thickness of the aluminum strip by adjusting the position of the second T-shaped nut on the second inverted T-shaped slot 333.

Further, the short side 23 is provided with a plurality of third avoidance holes 25, each third avoidance hole 25 is provided with a second positioning frame 341, the second positioning frame 341 is provided with a second connecting shaft 342 capable of sliding along the length direction of the second positioning frame 341, the second connecting shaft 342 is rotationally connected with the second limiting roller 34, and the axial lead of the second limiting roller 34 is perpendicular to the short side 23. Specifically, the second positioning frame 341 is provided with a third inverted T-shaped groove 343, the third inverted T-shaped groove 343 is slidably connected with a third T-shaped nut, the second connecting shaft 342 is connected with the third T-shaped nut through a countersunk head screw, and the distance between the second limiting roller 34 and the long side 22 is adjusted to be the width of the aluminum strip by adjusting the position of the third T-shaped nut on the third T-shaped groove 343.

The first limit roller 33, the second limit roller 34, the long side 22 and the short side 23 enclose a channel matched with the section of the aluminum strip, so as to limit the conveying direction of the aluminum strip and avoid the offset of the aluminum strip.

In a preferred embodiment, the sizing device 7 further includes a scale 71 disposed on the long side 22 and a slide 72 disposed on the short side 23, a first adjusting seat 73 and a second adjusting seat 74 that can slide along the length direction of the slide 72 are disposed on the slide 72, the first adjusting seat 73 is disposed near the cutting device 6, a first driving cylinder 75 is disposed on the first adjusting seat 73, a first baffle 76 is disposed at the end of a conveying rod of the first driving cylinder 75, and a second baffle 77 is disposed on the second adjusting seat 74. The first baffle 76 is used to define the length of the short side of the aluminum frame and the second baffle 77 is used to define the length of the long side of the aluminum frame. Before bending, the positions of the first adjusting seat 73 and the second adjusting seat 74 on the slideway 72 are adjusted so that the value of the scale 71 pointed by the first baffle 76 is consistent with the length value of the short side of the aluminum frame, and the value of the scale 71 pointed by the second baffle 77 is consistent with the length value of the long side of the aluminum frame.

When the short side of the aluminum frame is bent, the extending rod of the first driving air cylinder 75 is in an extending state, and the aluminum strip is pushed so that the bending part is abutted against the first baffle 76, and the bending device 5 bends the aluminum strip; next, bending the long side of the aluminum frame, retracting the extension rod of the first driving cylinder 75, moving the first baffle 76 away from the scale 71, pushing the aluminum strip, so that the bending part is abutted against the second baffle 77, and bending the aluminum strip by the bending device 5. By providing the sizing device 7, two bending lengths can be defined.

Specifically, the slide way 72 is provided with a fourth inverted T-shaped groove 721, the fourth inverted T-shaped groove 721 is slidably connected with two fourth T-shaped nuts, and the first adjusting seat 73 and the second adjusting seat 74 are respectively connected with the fourth T-shaped nuts through a hand-screwed screw 79.

Further, a first proximity switch 78 is provided on each of the first and second shutters 76 and 77. The first proximity switch 78 detects whether the bending position on the aluminum strip is moved into place.

In the bending specification of aluminum frames, the joints thereof should be at the one side thereof, i.e., the position pointed at M in fig. 1. The first bending angle needs to be cut off by a cutting device 6 before bending, so that the bending length is the distance between the bending device 5 and the cutting device 6; after the fourth bending angle is bent, the aluminum strip is pushed so that the fourth bending angle is propped against the first baffle 76 or the second baffle 77, and finally the cutting device 6 cuts off the aluminum strip, and the aluminum frames after four times of bending can be spliced just by connecting pieces at the head and the tail.

In order to save the part of the first bending angle which needs to be cut off before bending, in the embodiment, a support 11 is arranged on the frame, a guide rail 111 is arranged on the support 11, the cutting device 6 is in sliding connection with the guide rail 111, and a saw blade 61 is arranged at the conveying end of the cutting device 6; the inclined plate 2 is provided with a fourth avoiding hole 26 for avoiding the saw blade 61; the guide rail 111 is provided with a third baffle plate 8 which can horizontally move and is used for limiting the moving direction of the aluminum strip, the third baffle plate 8 and the saw blade 61 are arranged on the same vertical surface, in particular, the support is provided with a second driving cylinder 82, the guide rail 111 is slidably connected with a sliding table 83, an extension rod of the second driving cylinder 82 is connected with the sliding table 83, and the third baffle plate 8 is arranged on the sliding table 83.

At the beginning, the extension rod of the second driving cylinder 82 extends to drive the third baffle plate 8 to move towards the saw blade 61 so as to limit the length of the first section of bending aluminum strip to be the distance between the bending device 5 and the saw blade 61, and after the first bending angle is bent, the extension rod of the second driving cylinder 82 retracts to drive the third baffle plate 8 to reset so as to avoid position interference.

Further, a second proximity switch 81 is provided on the third baffle 8. Whether the end of the aluminum bar is moved into place can be detected by the second proximity switch 81.

It should be noted that, the cutting device 6 should be provided with a motor for driving the cutting device 6 to move along the direction of the guide rail 111 and driving the saw blade 61 to rotate, so that the saw blade 61 can cut off the aluminum strip, and the cutting device 6 is the prior art of aluminum frame bending machine, and the specific structure and principle thereof are not repeated.

It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.

Claims (10)

1. The utility model provides a cavity glass aluminum frame bender, its characterized in that, including frame and slope setting in the frame and be the inclined plane of L type structure, inclined plane sets gradually guider, closing device, bending device, cutting device and scale device along the horizontal direction, it has first hole of dodging to open on the inclined plane, guiding device is including locating the downthehole lower conveying mechanism of dodging and the last conveying mechanism that can move down conveying mechanism direction, goes up conveying mechanism and lower conveying mechanism cooperation and carries the aluminium strip forward, and lower conveying mechanism's downstream side is equipped with a plurality of first spacing rollers and second spacing rollers, and the axial lead of first spacing roller is perpendicular with the axial lead of second spacing roller, and first spacing roller and second spacing roller stagger the setting.

2. The hollow glass aluminum frame bending machine according to claim 1, wherein the lower conveying mechanism comprises a first mounting frame, a rotatable first conveying belt is arranged on the first mounting frame, and a supporting plate for supporting the first conveying belt is arranged on the first mounting frame.

3. The hollow glass aluminum frame bending machine according to claim 1, wherein the upper conveying mechanism comprises an adjusting frame arranged on the inclined plate and a second mounting frame slidably arranged on the adjusting frame, a rotatable second conveying belt is arranged on the second mounting frame, a pressing plate used for pressing the second conveying belt is arranged in the second conveying belt, and a plurality of springs are arranged between the pressing plate and the second mounting frame.

4. A hollow glass aluminum frame bending machine according to claim 3, wherein the adjusting frame comprises a mounting plate and a fixing plate vertically connected with the mounting plate, two first inverted-T-shaped grooves are formed in the mounting plate, each first inverted-T-shaped groove is slidably connected with a first T-shaped nut, the second mounting frame is arranged on the first T-shaped nut, an adjusting screw is connected to the fixing plate in a threaded mode, and the tail end of the adjusting screw is rotatably connected with the second mounting frame.

5. The hollow glass aluminum frame bending machine according to claim 1, wherein the inclined plate comprises a long side face and a short side face, a plurality of second avoiding holes are formed in the long side face, a first positioning frame is arranged on each second avoiding hole, a first connecting shaft capable of sliding along the length direction of the first positioning frame is arranged on the first positioning frame, the first connecting shaft is rotationally connected with the first limiting roller, and the axial lead of the first limiting roller is perpendicular to the long side face.

6. The bending machine for the hollow glass aluminum frame according to claim 5, wherein a plurality of third avoidance holes are formed in the short side face, a second positioning frame is arranged on each third avoidance hole, a second connecting shaft capable of sliding along the length direction of the second positioning frame is arranged on each second positioning frame, the second connecting shaft is rotationally connected with the second limiting roller, and the axial lead of the second limiting roller is perpendicular to the short side face.

7. The bending machine for hollow glass aluminum frames according to claim 5, wherein the sizing device further comprises a scale arranged on the long side surface and a slide way arranged on the short side surface, a first adjusting seat and a second adjusting seat which can slide along the length direction of the slide way are arranged on the slide way, the first adjusting seat is arranged close to the cutting device, a first driving cylinder is arranged on the first adjusting seat, a first baffle is arranged at the tail end of a conveying rod of the first driving cylinder, and a second baffle is arranged on the second adjusting seat.

8. The bending machine for hollow glass aluminum frames according to claim 7, wherein the first baffle and the second baffle are respectively provided with a first proximity switch.

9. The hollow glass aluminum frame bending machine according to claim 5, wherein a support is arranged on the frame, a guide rail is arranged on the support, the cutting device is connected with the guide rail in a sliding manner, and a saw blade is arranged at the conveying end of the cutting device; the inclined plate is provided with a fourth avoiding hole for avoiding the saw blade; the guide rail is provided with a third baffle plate which can move horizontally and is used for limiting the moving direction of the aluminum strip, and the third baffle plate and the saw blade are on the same vertical surface.

10. The hollow glass aluminum frame bending machine according to claim 9, wherein the third baffle is provided with a second proximity switch.