Aluminum veneer bending equipment

Abstract

Aluminum veneer bending equipment relates to the field of metal bending technology. In order to solve the problem that in the process of bending aluminum veneer, one side of the aluminum veneer is turned over and supported manually to avoid deformation of the aluminum veneer, the existing aluminum veneer bending machine has a low degree of automation and high labor intensity for workers. The aluminum veneer bending equipment includes a bending and shaping mechanism, a bracket and a synchronous support mechanism. The bending and shaping mechanism is provided with a stamping upper die and a shaping lower die. The stamping upper die moves down and squeezes the aluminum veneer to the shaping lower die to achieve the bending of the aluminum veneer; the bracket is arranged on one side of the bending and shaping mechanism to support the aluminum veneer; the synchronous support mechanism is used to drive the bracket to turn over; when the aluminum veneer is bent and turned up, the synchronous support mechanism drives the bracket to turn up synchronously so that the bracket supports the aluminum veneer. No manual support is required, the degree of automation is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of bending, and in particular to aluminum single plate bending equipment. Background Art

[0002] Aluminum veneer refers to a building decoration material that is processed by chromization and other treatments and then fluorocarbon spraying technology. The edges or all edges of the aluminum veneer are bent inwards to facilitate installation. The folding of aluminum veneers is usually processed by a bending machine. In the process of bending aluminum veneers, the existing aluminum veneer bending machine turns one side of the aluminum veneer over and supports it manually to avoid deformation of the aluminum veneer. The degree of automation is low and the labor intensity of workers is high. Summary of the invention

[0003] In view of this, the present invention provides an aluminum single plate bending device, in which the aluminum single plate is supported by a synchronously flipped bracket when being bent.

[0004] To achieve the above objectives, the present invention provides the following technical solutions.

[0005] 1. Aluminum veneer bending equipment, including:

[0006] The bending and shaping mechanism is provided with a stamping upper die and a shaping lower die. The stamping upper die moves downward and squeezes the aluminum veneer to the shaping lower die to achieve bending of the aluminum veneer;

[0007] A bracket is arranged on one side of the bending and shaping mechanism and is used to support the aluminum single plate;

[0008] A synchronous support mechanism, used for driving the bracket to flip;

[0009] When the aluminum veneer is bent and turned up, the synchronous support mechanism drives the bracket to turn up synchronously, so that the bracket supports the aluminum veneer.

[0010] The aluminum plate bending equipment is equipped with a bracket and a synchronous support mechanism, so that when the aluminum plate is bent and turned up, the synchronous support mechanism drives the bracket to turn up synchronously to support the aluminum plate and avoid deformation of the aluminum plate. At the same time, the automation level of the aluminum plate bending equipment is improved and the labor intensity of workers is reduced.

[0011] 2. Based on technical solution 1, the synchronous support mechanism includes:

[0012] The supporting oil cylinder is provided with a supporting piston rod, and the supporting piston rod can move up and down to flexibly contact and support the bracket;

[0013] The transmission oil cylinder is provided with a transmission piston rod, the transmission piston rod can move up and down, and the transmission oil cylinder is connected to the supporting oil cylinder;

[0014] A follower pressure block, which is fixed to the stamping upper die;

[0015] When the stamping upper die contacts the aluminum plate and moves downward, the follower pressure block contacts and pushes the transmission piston rod downward, the hydraulic oil in the transmission cylinder is squeezed into the supporting cylinder, and the supporting piston rod is pushed upward to drive the bracket to flip up synchronously.

[0016] 3. On the basis of technical solution 1, the bracket is provided with a flip shaft, which can move up and down. During the bending process of the aluminum veneer, the bending point of the aluminum veneer moves down with the stamping upper die, and the flip shaft moves down synchronously, so that the bracket always fits the aluminum veneer during the flipping process.

[0017] 4. On the basis of Technical Solution 3, the aluminum veneer is bent, the stamping upper die moves up and resets, and after the stamping upper die is out of contact with the aluminum veneer, the flip shaft moves up and resets, so that the bracket lifts the aluminum veneer. After the aluminum veneer is lifted to a level higher than the shaping lower die as a whole, the synchronous support mechanism drives the bracket to flip down and lay flat, so as to avoid the aluminum veneer being supported by the shaping lower die during the downward flipping of the bracket, causing creases in the aluminum veneer.

[0018] 5. Based on Technical Solution 4, it also includes:

[0019] A locking mechanism, used to lock the position of the synchronous support mechanism;

[0020] When the aluminum veneer is bent, the locking mechanism locks the position of the synchronous support mechanism to prevent the bracket from flipping down, until the aluminum veneer is lifted by the bracket to be higher than the shaping lower mold as a whole, the locking mechanism is unlocked, and the synchronous support mechanism moves down and resets.

[0021] 6. Based on technical solution 5, the synchronous support mechanism includes:

[0022] The supporting oil cylinder is provided with a supporting piston rod, which can move up and down and is used to flexibly contact and support the bracket, and an air hole is provided on the piston of the supporting piston rod;

[0023] The transmission oil cylinder is provided with a transmission piston rod and a return spring, and the transmission piston rod can move up and down;

[0024] A follower pressure block, which is fixed to the stamping upper die;

[0025] When the stamping upper die contacts the aluminum plate and moves downward, the follower pressure block contacts and pushes the transmission piston rod downward, the hydraulic oil in the transmission cylinder is squeezed into the supporting cylinder, and the supporting piston rod is pushed upward to drive the bracket to flip up synchronously;

[0026] The locking mechanism includes:

[0027] A locking cylinder is provided with a movable locking pin for locking the position of the supporting piston rod;

[0028] The unlocking cylinder is provided with an unlocking piston rod which can move up and down, the unlocking piston rod is inserted into the supporting cylinder, and the unlocking cylinder is communicated with the locking cylinder;

[0029] The downward pressing piston is installed in the supporting cylinder and can move up and down;

[0030] When the aluminum plate is bent, the locking cylinder locks the supporting piston rod to keep it in position. When the aluminum plate is lifted by the bracket, the return spring pushes the transmission piston rod to move up and reset. The hydraulic oil in the supporting cylinder flows back to the transmission cylinder, and the gas enters the air cavity formed by the pressing piston and the supporting piston rod through the air hole. The pressing piston moves downward until the aluminum plate is lifted to a level higher than the final molding lower die as a whole. The pressing piston squeezes the unlocking piston rod, and the hydraulic oil in the unlocking cylinder is pressed into the locking cylinder. The locking pin retracts and releases the supporting piston rod, and the supporting piston rod moves down and resets.

[0031] 7. On the basis of Technical Solution 2, it also includes a sensing distance adjustment mechanism for detecting the thickness of the aluminum veneer. The transmission piston rod is provided with an adjustable contact block for contacting the follower pressure block. The adjustable contact block can move up and down. The sensing distance adjustment mechanism is triggered to adjust the height of the adjustable contact block extending out of the transmission piston rod according to the thickness of the aluminum veneer to ensure that the stamping upper die contacts the aluminum veneer and moves downward while the follower pressure block contacts the adjustable contact block and pushes the transmission piston rod to move downward.

[0032] 8. Based on technical solution 7, the sensing distance adjustment mechanism includes:

[0033] The detection oil cylinder is installed above the bracket. The detection oil cylinder is provided with a detection piston rod, and the detection piston rod can elastically contact the aluminum plate;

[0034] The height adjustment cylinder is installed in the transmission piston rod and connected to the detection cylinder. The height adjustment cylinder is provided with a height adjustment piston rod. The height adjustment piston rod is connected to the adjustable contact block for adjusting the height of the adjustable contact block extending out of the transmission piston rod.

[0035] When the aluminum sheet to be bent is placed flat on the bracket, the detection piston rod contacts the surface of the aluminum sheet, and the detection cylinder drives the height adjustment piston rod to extend out of the height adjustment cylinder or retract into the height adjustment cylinder according to the thickness of the aluminum sheet to adjust the height of the adjustable contact block extending out of the transmission piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the aluminum single plate bending equipment of the present invention (before the aluminum single plate is bent).

[0037] Figure 2 It is a schematic diagram of the three-dimensional structure of the aluminum single plate bending equipment of the present invention (when the aluminum single plate is bent).

[0038] Figure 3 It is a three-dimensional structural schematic diagram of the aluminum single plate bending equipment of the present invention (aluminum single plate bending is completed).

[0039] Figure 4It is a schematic diagram of the three-dimensional structure of the aluminum single plate bending equipment of the present invention after hiding part of the structure.

[0040] Figure 5 It is a front view of the aluminum single plate bending equipment of the present invention (when the aluminum single plate is bent).

[0041] Figure 6 for Figure 5 Cross-sectional view at AA in the middle.

[0042] Figure 7 for Figure 5 Cross-sectional view at BB in the middle.

[0043] Figure 8 It is a front view of the aluminum veneer bending equipment of the present invention (aluminum veneer bending is completed).

[0044] Fig. 9 Schematic diagram of the stamping upper die, shaping lower die and aluminum veneer before and after bending.

[0045] Reference numerals include:

[0046] Bending and shaping mechanism 1, stamping upper die 11, shaping lower die 12;

[0047] Bracket 2, conveyor belt 21, turning shaft 22;

[0048] Synchronous support mechanism 3, support cylinder 31, support piston rod 311, air hole 3111, guide rod 312, pulley 313, transmission cylinder 32, transmission piston rod 321, adjustable contact block 3211, return spring 322, follower pressure block 33;

[0049] Locking cylinder 41, return spring 411, lock pin 412, lock block 42, unlocking cylinder 43, unlocking piston rod 431, return spring 432, pressing piston 44;

[0050] Sensing distance adjustment mechanism 5, movable bracket 51, detection cylinder 52, roller 521, pressing spring 522, detection piston rod 523, height adjustment cylinder 53, height adjustment piston rod 531;

[0051] Bending point 6, aluminum veneer 7, bracket 8. DETAILED DESCRIPTION

[0052] The present invention is described in detail below in conjunction with specific embodiments.

[0053] like Figure 1-Figure 4 As shown, the aluminum plate bending equipment of this embodiment includes a bending and shaping mechanism 1 for bending and shaping the aluminum plate. The bending and shaping mechanism 1 is provided with a stamping upper die 11 and a shaping lower die 12. The shaping lower die 12 remains fixed, and the stamping upper die 11 can move up and down. Fig. 9As shown in (a), before the aluminum veneer 7 is bent, the edge of the aluminum veneer 7 is flattened on the shaping groove of the shaping lower die 12. When the stamping upper die 11 moves down and stamps the aluminum veneer 7, the edge of the aluminum veneer 7 is pressed into the shaping groove of the shaping lower die 12 to achieve the bending of the aluminum veneer 7. Fig. 9 As shown in (b). Figure 7 and Fig. 9 During the bending process of the aluminum veneer 7, the stamping position of the stamping upper die 11 on the aluminum veneer 7 is the bending point 6 of the aluminum veneer 7. The two side surfaces of the bending point 6 of the aluminum veneer 7 are turned upward around the bending point 6, so the bending point 6 of the aluminum veneer 7 is also the rotation axis of the aluminum veneer 7. Fig. 9 The dotted line shown in (a) is the path of the bending point 6 moving downward during the bending process. Since the aluminum veneer 7 is edge-folded, one side of the flipped-up plate is shorter and is supported by the shaping groove of the shaping lower die 12, and the other side of the flipped-up plate of the aluminum veneer 7 is longer and needs to be supported to avoid deformation of the aluminum veneer 7. It is usually supported manually by workers, resulting in high labor intensity for workers.

[0054] To this end, combined Figures 1 to 3 The aluminum veneer bending equipment of this embodiment also includes a bracket 2 and two synchronous support mechanisms 3. The bracket 2 and the two synchronous support mechanisms 3 are arranged on one side of the bending and shaping mechanism 1. The bracket 2 can be flipped toward the bending and shaping mechanism 1 to support the aluminum veneer 7. A conveyor belt 21 is arranged on the bracket 2. The conveyor belt 21 is used for feeding and retracting the aluminum veneer 7. The two synchronous support mechanisms 3 are installed side by side on the bracket 8. The synchronous support mechanisms 3 are used to support and drive the bracket 2 to flip. In actual application, the aluminum veneer 7 is placed flat on the conveyor belt 21 of the bracket 2. The conveyor belt 21 rotates forward and transports the aluminum veneer 7 to the processing station (such as Figure 1 After the stamping upper die 11 moves down and contacts the aluminum plate 7, the aluminum plate 7 is bent and turned up, and the conveyor belt 21 is conveyed forward a little, or the conveyor belt 21 is released, so that the aluminum plate 7 can move forward during the bending process. The synchronous support mechanism 3 is activated when the stamping upper die 11 contacts the aluminum plate 7, and drives the bracket 2 to turn up (as shown in FIG. Figure 2 As shown in the state, the bracket 2 and the aluminum plate 7 are turned over synchronously to achieve the purpose of supporting and avoid deformation of the aluminum plate 7. When the aluminum plate 7 is bent, the synchronous support mechanism 3 drives the bracket 2 and the aluminum plate 7 to turn down and lay flat (as shown in the state). Figure 3 When the remaining edges need to be folded, turn the aluminum veneer 7 and repeat the process. Figures 1 to 3 The bracket 2 and the synchronous support mechanism 3 are used to support the aluminum single plate 7 during the bending process of the aluminum single plate 7, and no manual support is required, thereby reducing the labor intensity of the workers.

[0055] The synchronous support mechanism can be in the form of a separate power source, and the timing of flipping up and down can be controlled to ensure synchronization with the bending process. This form is relatively expensive and requires the use of sensors or other means to control and coordinate the synchronous support mechanism and the bending and shaping mechanism through controller programming to ensure synchronization. Even so, due to the detection error of the sensor, the cumulative error of the production rhythm or other factors, asynchronism may occur. Once asynchronism occurs, since the synchronous support mechanism itself has power, it will bend the aluminum veneer 7 in a non-bending position, resulting in product scrapping.

[0056] In this embodiment, the synchronous support mechanism is implemented by another solution, such as Figures 4 to 7 As shown, the synchronous support mechanism 3 described in this embodiment includes a support cylinder 31 for supporting and driving the bracket 2 to flip. The support cylinder 31 is installed under the bracket 2. The support cylinder 31 is provided with a support piston rod 311, a guide rod 312 and a pulley 313. The support piston rod 311 can move up and down. The pulley 313 is installed on the top of the support piston rod 311 to contact and support the bracket 2. When the support piston rod 311 moves up, the bracket 2 flips up, and the support piston rod 311 and the lower surface of the bracket 2 slide relative to each other. If the support piston rod 311 is in direct contact with the bracket 2, scratches are likely to occur on the surface of the bracket 2. The design of the pulley 313 can reduce friction and avoid scratches on the surface of the bracket 2. The two guide rods 312 are arranged in parallel on both sides of the support piston rod 311 and move up and down with the support piston rod 311 to avoid the problem of deflection of the support piston rod 311 when it moves up and down. Figure 4 and Figure 6 The synchronous support mechanism 3 also includes a transmission oil cylinder 32 and a follower pressure block 33 for transmitting the downward pressing power of the stamping upper die 11. The follower pressure block 33 is installed on one side of the stamping upper die 11 and moves up and down with the stamping upper die 11. Figure 6The transmission oil cylinder 32 is installed below the follower pressure block 33 and is connected to the supporting oil cylinder 31. The transmission oil cylinder 32 is provided with a transmission piston rod 321 and a return spring 322. The transmission piston rod 321 can move up and down. During operation, the stamping upper die 11 drives the follower pressure block 33 to move down. When the stamping upper die 11 contacts and squeezes the aluminum single plate 7, the follower pressure block 33 synchronously contacts and squeezes the transmission piston rod 321. As the stamping upper die 11 continues to move down, the aluminum single plate 7 is bent and turned up. The follower pressure block 33 squeezes the transmission piston rod 321 and the return spring 322. The transmission piston rod 321 moves down and squeezes the hydraulic oil in the transmission oil cylinder 32 into the supporting oil cylinder 31. The supporting piston rod 311 is thereby driven to move up, thereby driving the bracket 2 to turn up synchronously, so that the bracket 2 always supports the aluminum single plate 7 when the aluminum single plate 7 turns up. When the stamping upper die 11 drives the follower pressure block 33 to move up and reset, the transmission piston rod 321 moves up and resets under the rebound force of the reset spring 322, the transmission oil cylinder 32 is in negative pressure, and the hydraulic oil in the support oil cylinder 31 is sucked into the transmission oil cylinder 32. In addition to the deadweight of the bracket 2 and the support piston rod 311, the support piston rod 311 moves down and resets, so that the bracket 2 drives the aluminum single plate 7 to turn down and lay flat. The synchronous support mechanism 3 is driven by the downward pressing action of the stamping upper die 11. It only needs to configure the cylinder capacity of the transmission oil cylinder 32 and the support oil cylinder 31 according to the stroke of the two to achieve the synchronization of the turning up of the bracket 2 and the bending of the aluminum single plate 7. On the one hand, there is no need to set up an additional power mechanism to drive the bracket 2 to turn up, simplifying the structure and reducing costs. On the other hand, it can make the turning up of the bracket 2 synchronized with the bending and turning up of the aluminum single plate 7, and the reliability of synchronization is better, ensuring the supporting effect of the bracket 2.

[0057] like Figure 4 and Figure 6 As shown, the bracket 2 in this embodiment is provided with a flip shaft 22, and the flip shaft 22 is connected to the transmission piston rod 321 of the transmission oil cylinder 32, and the flip shaft 22 moves up and down with the transmission piston rod 321. Such a design is that the bracket 2 and the aluminum single plate 7 can only be ensured to fit together when they are in a parallel state. As mentioned above, combined with Fig. 9 During the bending process of the aluminum veneer 7, the bending point 6 of the aluminum veneer 7 (that is, the turning axis of the aluminum veneer 7) will gradually move downwards as the bending process progresses. Fig. 9As shown by the dotted line in (a), if the flip shaft 22 of the bracket 2 cannot move downward synchronously, an angle will be generated between the bracket 2 and the aluminum veneer 7, that is, the aluminum veneer 7 and the bracket 2 are not attached and a gap will be generated, and the aluminum veneer 7 may be deformed. The smaller the thickness of the aluminum veneer 7, the greater the degree of deformation. Therefore, the flip shaft 22 of the bracket 2 is installed on the transmission piston rod 321 and aligned with the bending point 6 of the aluminum veneer 7. During the bending process of the aluminum veneer 7, the bending point 6 of the aluminum veneer 7 moves downward with the stamping upper die 11, and the follower pressure block 33 presses the transmission piston rod 321 synchronously, and the flip shaft 22 moves downward synchronously with the bending point 6 of the aluminum veneer 7, so that the bracket 2 always fits the aluminum veneer 7 during the flipping process to avoid deformation of the aluminum veneer 7.

[0058] like Figure 6 As shown, the aluminum single plate bending equipment in this embodiment also includes a locking mechanism for locking the position of the supporting piston rod 311 of the supporting oil cylinder 31. After the aluminum single plate 7 is bent, since the flip shaft 22 of the bracket 2 moves downward with the transmission piston rod 321, if the synchronous support mechanism 3 immediately drives the bracket 2 to flip down and lay flat, the aluminum single plate 7 cannot fit the bracket 2 during the flipping process and will be supported by the fixed lower mold 12 ( Fig. 9 c in (b)), creases are likely to occur. Therefore, after the aluminum veneer 7 is bent, the position of the supporting piston rod 311 is locked by a locking mechanism, the stamping upper die 11 moves upward, the follower pressure block 33 is separated from the transmission piston rod 321, and the transmission piston rod 321 drives the flip shaft 22 to move upward and reset under the rebound force of the reset spring 322, so that the bracket 2 lifts the aluminum veneer 7, and the aluminum veneer 7 is lifted away from the shaping lower die 12. During the lifting process of the aluminum veneer 7, the conveyor belt 21 reverses or does not rotate (cannot lose force) to prevent the aluminum veneer 7 from sliding down. After the flip shaft 22 moves upward and resets into place, the aluminum veneer 7 is higher than the shaping lower die 12 as a whole, and the locking mechanism unlocks the supporting piston rod 311, and the supporting piston rod 311 drives the bracket 2 to flip down and lay flat. During the process of flipping down and laying flat, the aluminum veneer 7 will always fit the bracket 2 and will not be contacted and supported by the shaping lower die 12, thus avoiding creases.

[0059] like Figure 6As shown, the locking mechanism of this embodiment includes a locking cylinder 41 and a locking block 42. The locking cylinder 41 is installed on the side of the supporting piston rod 311 exposed from the supporting cylinder 31, and the locking block 42 is arranged on the supporting piston rod 311. The locking cylinder 41 is provided with a return spring 411 and a retractable locking pin 412. The end of the locking pin 412 is wedge-shaped. The cooperation between the locking pin 412 and the locking block 42 can lock the position of the supporting piston rod 311 to ensure that the bracket 2 does not flip down. The specific process is that when the hydraulic oil in the transmission cylinder 32 is pressed into the supporting cylinder 31, the locking block 42 moves up with the supporting piston rod 311, and when the bracket 2 is about to flip up and into place, the locking block 42 squeezes the locking pin 412 and the return spring 411, and the locking pin 412 retracts into the locking cylinder 41. When the locking block 42 moves to the top of the locking cylinder 41, the locking pin 412 is reset under the rebound force of the return spring 411. At this time, the locking block 42 abuts against the locking pin 412, and the bracket 2 has flipped up and into place, thereby locking the position of the supporting piston rod 311 and preventing the bracket 2 from flipping down. The locking mechanism also includes a pressing piston 44, which is installed in the supporting oil cylinder 31 and can move up and down. When the aluminum single plate 7 is placed flat on the bracket 2, the supporting piston rod 311 is in the initial position. At this time, the piston of the supporting piston rod 311 contacts the pressing piston 44, so that when the hydraulic oil in the transmission oil cylinder 32 is pressed into the supporting oil cylinder 31, the upward movement speed of the supporting piston rod 311 is not affected, ensuring that the bracket and the aluminum single plate 7 are turned up synchronously. The piston of the supporting piston rod 311 is provided with an air hole 3111. When the transmission piston rod 321 moves up, the pressing piston 44 is separated from the supporting piston rod 311, and an air cavity is formed between the two, and air is taken in through the air hole 3111. When the aluminum veneer 7 is bent, the locking cylinder 41 locks the supporting piston rod 311 to keep it in place, and the stamping upper die 11 drives the follower pressure block 33 to move up and reset. The reset spring 322 pushes the transmission piston rod 321 and the flip shaft 22 to move up and reset. The aluminum veneer 7 is lifted by the bracket 2, and negative pressure is generated in the transmission cylinder 32. The hydraulic oil in the supporting cylinder 31 flows back into the transmission cylinder 32, and the pressing piston 44 moves down and separates from the supporting piston rod 311, forming an air cavity between the two. The air cavity takes in air through the air hole 3111. Since the air intake speed of the air hole 3111 is slow, the downward movement speed of the pressing piston 44 is relatively slow. Therefore, the upward movement speed of the transmission piston rod 321 is slow, which is slower than the upward movement speed of the stamping upper die 11. The upward movement speed of the flip shaft 22 is less than the upward movement speed of the stamping upper die 11, which prevents the stamping upper die 11 from blocking the lifting and flipping of the aluminum veneer 7. Figure 6After the transmission piston rod 321 moves up and resets into place, the aluminum single plate 7 is lifted to be higher than the shaping lower mold 12 as a whole. At this time, it is necessary to unlock the supporting piston rod 311 to drive the bracket 2 and the aluminum single plate 7 to flip down and reset. Therefore, the locking mechanism also includes an unlocking cylinder 43. The unlocking cylinder 43 is installed at the bottom of the supporting cylinder 31 and is connected to the locking cylinder 41. The unlocking cylinder 43 is provided with an unlocking piston rod 431 and a return spring 432. The unlocking piston rod 431 is inserted into the supporting cylinder 31. When the aluminum single plate 7 is lifted to a level higher than the final molding lower mold 12, the pressing piston 44 happens to move to the bottom of the supporting cylinder 31 and squeezes the unlocking piston rod 431. The hydraulic oil in the unlocking cylinder 43 is pressed into the locking cylinder 41, pushing the locking pin 412 to retract and squeeze the return spring 411. The locking pin 412 releases the supporting piston rod 311, and the supporting piston rod 311 moves downward and resets. During the downward movement of the supporting piston rod 311, the air cavity is squeezed to exhaust air. The air hole 3111 on the supporting piston rod 311 is a small hole, which can slow down the downward movement of the supporting piston rod 311 and ensure the stability of the bracket 2 and the aluminum single plate 7.

[0060] The bending equipment needs to bend aluminum sheets 7 of different thicknesses. When facing aluminum sheets 7 of different thicknesses, the distance between the stamping upper die 11 and the upper surface of the aluminum sheet 7 changes, while the distance between the follower pressure block 33 and the transmission piston rod 321 of the transmission cylinder 32 does not change. This results in the time when the follower pressure block 33 contacts the transmission cylinder 32 being different from the time when the stamping upper die 11 contacts the aluminum sheet 7. The bending of the aluminum sheet 7 and the support of the aluminum sheet 7 by the bracket 2 are still not synchronized. Figure 3 , Figure 4 and Figure 8As shown, the aluminum veneer bending equipment of this embodiment also includes a sensing distance adjusting mechanism 5 for detecting the thickness of the aluminum veneer 7. The transmission piston rod 321 is provided with an adjustable contact block 3211 for contacting the follower pressure block 33. The adjustable contact block 3211 can move up and down. The sensing distance adjusting mechanism 5 is triggered to adjust the height of the adjustable contact block 3211 extending out of the transmission piston rod 321 according to the thickness of the aluminum veneer 7 to ensure that the stamping upper die 11 contacts the aluminum veneer 7 and moves downward while the follower pressure block 33 contacts the adjustable contact block 3211 and pushes the transmission piston rod 321 to move downward. An adjustable contact block 3211 is arranged on the transmission piston rod 321. When the stamping upper die 11 moves downward, the follower pressure block 33 contacts and presses down the adjustable contact block 3211. The sensing distance adjustment mechanism 5 is used to detect the thickness of each aluminum single plate 7. The sensing distance adjustment mechanism 5 is triggered to adjust the height of the adjustable contact block 3211 extending out of the transmission piston rod 321 according to the thickness of the aluminum single plate 7, so as to adjust the distance between the adjustable contact block 3211 and the follower pressure block 33, so that the adjustable contact block 3211 and the follower pressure block 33 are close to each other. The distance between the blocks 33 and the distance between the stamping upper die 11 and the aluminum veneer 7 are always the same, so that the stamping of the aluminum veneer 7 by the stamping upper die 11 and the stamping of the transmission cylinder 32 by the follower pressure block 33 are carried out synchronously. No matter how the thickness of the aluminum veneer 7 changes, the stamping upper die 11 contacts the aluminum veneer 7 and moves downward, while the follower pressure block 33 contacts the adjustable contact block 3211 and pushes the transmission piston rod 321 to move downward, finally ensuring that when the aluminum veneer 7 is bent and flipped up, the bracket 2 flips up synchronously to achieve the supporting purpose.

[0061] Specifically, combined Figure 4 and Figure 8The sensing distance adjustment mechanism 5 includes a movable bracket 51, a detection cylinder 52 and a height adjustment cylinder 53. The movable bracket 51 is installed above the bracket 2 and can move up and down; the detection cylinder 52 is installed on the movable bracket 51, and the detection cylinder 52 is provided with a roller 521, a downward pressure spring 522 and a detection piston rod 523 that can move up and down. The roller 521 is installed at the end of the detection piston rod 523 and contacts the surface of the aluminum single plate 7; when the aluminum single plate 7 to be bent needs to be placed flat on the bracket 2, the movable bracket 51 drives the detection cylinder 52 to lift, the conveyor belt 21 drives the aluminum single plate 7 to move to the processing station, the movable bracket 51 drives the detection cylinder 52 to reset, and the roller 521 contacts the surface of the aluminum single plate 7. The height adjustment cylinder 53 is installed in the transmission piston rod 321 and connected to the detection cylinder 52. The height adjustment cylinder 53 is provided with a height adjustment piston rod 531. The height adjustment piston rod 531 is connected to the adjustable contact block 3211 for adjusting the height of the adjustable contact block 3211 extending out of the transmission piston rod 321. Before the aluminum plate 7 is bent, the roller 521 of the detection cylinder 52 contacts the surface of the aluminum plate 7. When the thickness of the aluminum plate 7 to be bent is greater than the preset thickness of the aluminum plate 7, the aluminum plate 7 squeezes the detection piston rod 523 to move upward, and the hydraulic oil in the detection cylinder 52 is pressed into the height adjustment cylinder 53. The height adjustment piston rod 531 moves upward and pushes the adjustable contact block 3211 to move upward to reduce the distance between the adjustable contact block 3211 and the follower pressure block 33; when the thickness of the aluminum plate 7 to be bent is less than the preset thickness of the aluminum plate 7, the downward pressure spring 522 squeezes the detection piston rod 523 to move downward, the detection cylinder 52 is under negative pressure, and the hydraulic oil in the height adjustment cylinder 53 is sucked into the detection cylinder 52. The height adjustment piston rod 531 moves downward and drives the adjustable contact block 3211 to move downward to increase the distance between the adjustable contact block 3211 and the follower pressure block 33. The distance between the follower pressure block 33 and the transmission piston rod 321 is always equal to the distance between the stamping upper die 11 and the aluminum single plate 7 .

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. Aluminum veneer bending equipment, including: The bending and shaping mechanism is provided with a stamping upper die and a shaping lower die. The stamping upper die moves downward and squeezes the aluminum veneer to the shaping lower die to achieve bending of the aluminum veneer; It is characterized by further comprising: A bracket is arranged on one side of the bending and shaping mechanism and is used to support the aluminum single plate; A synchronous support mechanism, used for driving the bracket to flip; When the aluminum veneer is bent and turned up, the synchronous support mechanism drives the bracket to turn up synchronously, so that the bracket supports the aluminum veneer; The synchronous support mechanism includes: The supporting oil cylinder is provided with a supporting piston rod, and the supporting piston rod can move up and down to flexibly contact and support the bracket; The transmission oil cylinder is provided with a transmission piston rod, the transmission piston rod can move up and down, and the transmission oil cylinder is connected to the supporting oil cylinder; A follower pressure block, which is fixed to the stamping upper die; When the stamping upper die contacts the aluminum plate and moves downward, the follower pressure block contacts and pushes the transmission piston rod downward, the hydraulic oil in the transmission cylinder is squeezed into the supporting cylinder, and the supporting piston rod is pushed upward to drive the bracket to flip up synchronously; It also includes a sensing distance adjustment mechanism for detecting the thickness of the aluminum veneer. The transmission piston rod is provided with an adjustable contact block for contacting the follower pressure block. The adjustable contact block can move up and down. The sensing distance adjustment mechanism is triggered to adjust the height of the adjustable contact block extending out of the transmission piston rod according to the thickness of the aluminum veneer to ensure that the stamping upper die contacts the aluminum veneer and moves downward while the follower pressure block contacts the adjustable contact block and pushes the transmission piston rod to move downward. The sensing distance adjustment mechanism includes: The detection oil cylinder is installed above the bracket. The detection oil cylinder is provided with a detection piston rod, and the detection piston rod can elastically contact the aluminum plate; The height adjustment cylinder is installed in the transmission piston rod and connected to the detection cylinder. The height adjustment cylinder is provided with a height adjustment piston rod. The height adjustment piston rod is connected to the adjustable contact block for adjusting the height of the adjustable contact block extending out of the transmission piston rod. When the aluminum sheet to be bent is placed flat on the bracket, the detection piston rod contacts the surface of the aluminum sheet, and the detection cylinder drives the height adjustment piston rod to extend out of the height adjustment cylinder or retract into the height adjustment cylinder according to the thickness of the aluminum sheet to adjust the height of the adjustable contact block extending out of the transmission piston rod.

2. The aluminum single plate bending equipment according to claim 1 is characterized in that: The bracket is provided with a flip shaft which can move up and down. When the aluminum veneer is bent, the bending point of the aluminum veneer moves down with the stamping upper die, and the flip shaft moves down synchronously, so that the bracket always fits the aluminum veneer during the flipping process.

3. The aluminum single plate bending equipment according to claim 2 is characterized in that: After the aluminum veneer is bent, the stamping upper die moves up and resets. After the stamping upper die is out of contact with the aluminum veneer, the flip shaft moves up and resets to allow the bracket to lift the aluminum veneer. After the aluminum veneer is lifted to a level higher than the shaping lower die as a whole, the synchronous support mechanism drives the bracket to flip down and lay flat to avoid creases on the aluminum veneer caused by the shaping lower die supporting the aluminum veneer during the downward flipping of the bracket.

4. The aluminum single plate bending equipment according to claim 3 is characterized in that: Also includes: A locking mechanism, used to lock the position of the synchronous support mechanism; When the aluminum veneer is bent, the locking mechanism locks the position of the synchronous support mechanism to prevent the bracket from flipping down, until the aluminum veneer is lifted by the bracket to be higher than the shaping lower mold as a whole, the locking mechanism is unlocked, and the synchronous support mechanism moves down and resets.

5. The aluminum single plate bending equipment according to claim 4 is characterized in that: The synchronous support mechanism includes: The supporting oil cylinder is provided with a supporting piston rod, which can move up and down and is used to flexibly contact and support the bracket, and an air hole is provided on the piston of the supporting piston rod; The transmission oil cylinder is provided with a transmission piston rod and a return spring, and the transmission piston rod can move up and down; A follower pressure block, which is fixed to the stamping upper die; When the stamping upper die contacts the aluminum plate and moves downward, the follower pressure block contacts and pushes the transmission piston rod downward, the hydraulic oil in the transmission cylinder is squeezed into the supporting cylinder, and the supporting piston rod is pushed upward to drive the bracket to flip up synchronously; The locking mechanism includes: A locking cylinder is provided with a movable locking pin for locking the position of the supporting piston rod; The unlocking cylinder is provided with an unlocking piston rod which can move up and down, the unlocking piston rod is inserted into the supporting cylinder, and the unlocking cylinder is communicated with the locking cylinder; The downward pressing piston is installed in the supporting cylinder and can move up and down; When the aluminum plate is bent, the locking cylinder locks the supporting piston rod to keep it in position. When the aluminum plate is lifted by the bracket, the return spring pushes the transmission piston rod to move up and reset. The hydraulic oil in the supporting cylinder flows back to the transmission cylinder, and the gas enters the air cavity formed by the pressing piston and the supporting piston rod through the air hole. The pressing piston moves downward until the aluminum plate is lifted to a level higher than the final molding lower die as a whole. The pressing piston squeezes the unlocking piston rod, and the hydraulic oil in the unlocking cylinder is pressed into the locking cylinder. The locking pin retracts and releases the supporting piston rod, and the supporting piston rod moves down and resets.

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