A punching machine for producing and shaping LED display back panels

Abstract

The present invention is applicable to the field of display back panel stamping technology, and provides a stamping machine for the production and shaping of LED display back panels, including a machine base, a guide column, a bottom support plate, a concave die, a stamping plate and a convex die, and also includes: a machine top plate, a lifting assembly is also fixed on the machine base, and the output end of the lifting assembly is fixedly connected to the machine top plate; a stamping assembly, the stamping assembly is installed on the machine top plate, and the stamping assembly is connected to the stamping plate; an auxiliary folding assembly, the auxiliary folding assembly includes a telescopic cylinder 1, a folding support, a folding top plate, a folding push block, a folding plate, a connecting plate and an elastic rope, when the stamping plate moves downward for stamping, the folding top plate pushes the folding push block to move in a direction close to the bottom support plate, so that the connecting plate pushes the folding plate to rotate to perform a folding operation on the back panel. The present invention has high flexibility and an integrated stamping and folding function, and can stably and efficiently transmit, thereby improving the efficiency and quality of processing.

Description

Technical Field

[0001] The invention belongs to the technical field of display back panel stamping, and in particular relates to a stamping machine used for production and shaping of LED display back panels. Background Art

[0002] The LED display backplane is an important component of the LED display screen, which mainly supports and fixes the LED lamp beads.

[0003] The back panel is usually made of metal material (aluminum alloy back panel is widely used in various LED display screens due to its lightness, beauty and good heat dissipation), and has a certain strength and stability to ensure that the LED display screen will not be deformed or damaged during use.

[0004] The LED display back panel is manufactured using a stamping process, and the two sides of the LED display back panel generally have folded edges, which improve the aesthetics, structural strength, installation convenience, protection and isolation effects, etc.

[0005] However, the existing stamping machines have poor flexibility, cannot complete the stamping and folding functions in an integrated manner, and have poor transmission stability. Improvements are needed to overcome the shortcomings in current practical applications. Summary of the invention

[0006] The purpose of the present invention is to provide a punching machine for producing and shaping the back panel of an LED display, aiming to solve the problems mentioned in the above background technology.

[0007] The present invention is implemented as follows: a punching machine for producing and shaping the back panel of an LED display comprises a machine base and a plurality of guide pillars fixed thereon, a bottom support plate is fixed on the plurality of guide pillars, a concave die is fixed on the upper side of the bottom support plate, a punching plate is slidably provided on the plurality of guide pillars above the bottom support plate, a convex die for cooperating with the concave die to punch the back panel is fixed on the lower side of the punching plate, and further comprises:

[0008] A set top plate, a set top plate is slidably provided on the plurality of guide pillars above the stamping plate; a lifting assembly is also fixed on the machine base, an output end of the lifting assembly is fixedly connected to the set top plate, and the lifting assembly is used to drive the set top plate to rise and fall;

[0009] A stamping assembly, the stamping assembly is mounted on the top plate of the machine, and the stamping assembly is connected to the stamping plate, and the stamping assembly is used to drive the stamping plate to rise and fall;

[0010] The auxiliary folding edge component comprises a telescopic cylinder 1, a folding edge support, a folding edge top plate, a folding edge pushing block, a folding edge plate, a connecting plate and an elastic rope, a folding edge support is provided on the outer side of the bottom support plate, a notch is opened on the folding edge support, and a folding edge pushing block is slidably provided on the notch, and the folding edge support is hingedly provided with a folding edge plate for folding the back plate at one end close to the bottom support plate, the folding edge plate is also connected to the folding edge pushing block through the connecting plate, and the folding edge plate is also connected to the folding edge support through the elastic rope, and the elastic rope is used to make the movable end of the folding edge plate rotate in the direction away from the concave mold, and a telescopic cylinder 1 is also fixed on the lower side of the folding edge support, and the lower end of the telescopic cylinder 1 is fixed on the machine base; the outer side of the stamping plate can be longitudinally adjusted and movably installed with a folding edge top plate matching the folding edge pushing block, and when the stamping plate moves downward for stamping, the folding edge top plate pushes the folding edge pushing block to move in the direction close to the bottom support plate, so that the connecting plate pushes the folding edge plate to rotate to perform folding operation on the back plate.

[0011] According to a further technical solution, the punching machine used for producing and shaping the back panel of an LED display further includes a fixing component for fixing the back panel material to be punched on the die.

[0012] A further technical solution is that the folding top plate and the stamping plate are slidably connected, and two fixing bolts for locking and fixing the folding top plate are installed on the stamping plate; guide rails are fixed on both sides of the notch, and guide grooves slidably connected to the guide rails are correspondingly opened on both sides of the folding push block; the lower end of the folding top plate is inclined upward on the side close to the bottom support plate, and the upper end of the folding push block is arranged parallel to the lower end of the folding top plate.

[0013] A further technical solution is that one end of the folding plate is hingedly connected to the folding support through a hinge support three; the two ends of the connecting plate are respectively hingedly connected to the folding plate and the folding push block; when there is no external force, under the action of the elastic force of the elastic rope, the upper end surface of the folding plate is located on the lower side of the upper end surface of the die, and the angle between the connecting plate and the side surface of the folding push block close to the bottom support plate is less than 90°.

[0014] According to a further technical solution, a telescopic cylinder is fixed to each of the four lower corners of the folding support; a mounting opening is provided on the outer side of the bottom support plate, a U-shaped guard plate is fixed to the lower side of the mounting opening, and the folding support is slidably connected to the inner wall of the U-shaped guard plate.

[0015] A further technical solution is that the lifting assembly includes a telescopic cylinder three and a machine side frame, the machine side frame is fixed on the machine base, the telescopic cylinder three is fixed on the horizontal part of the machine side frame, and the output end of the telescopic cylinder three is connected and fixed to the machine top plate.

[0016] According to a further technical solution, a fixing bolt 1 is installed on the outer side of the top plate corresponding to the guide column, and the fixing bolt 1 is used to lock and fix the top plate on the guide column.

[0017] A further technical solution is that the stamping assembly includes a telescopic cylinder 2 and a stamping transmission component. The telescopic cylinder 2 is installed and fixed in the middle of the top of the machine top plate. The stamping transmission component includes a hanging plate, a transmission rod 1, a transmission rod 2, a hinge support 1 and a transmission rod 3. A hinge support 1 is fixed to each of the two ends of the upper side of the stamping plate. A hanging plate is fixed above the hinge support 1 corresponding to the lower side of the machine top plate. The transmission rod 2 is hinged on the hinge support 1, and the transmission rod 1 is hinged at the lower end of the hanging plate. One end of the transmission rod 1 away from the hanging plate and one end of the transmission rod 2 away from the hinge support 1 are both hinged to one end of the transmission rod 3, and the other end of the transmission rod 3 is hinged to the output end of the telescopic cylinder 2 through the hinge support 2.

[0018] According to a further technical solution, the stamping assembly further comprises a telescopic guide rod, telescopic guide rods are arranged on both sides of the stamping transmission member, two ends of the telescopic guide rods are respectively fixedly connected to the top plate and the stamping plate, and the telescopic guide rods adopt a damping telescopic structure.

[0019] According to a further technical solution, the transmission rod 1, the transmission rod 2 and the transmission rod 3 have the same length; and a counterweight is also installed on the stamping plate.

[0020] The punching machine for producing and shaping the back panel of an LED display provided by the present invention has the following beneficial effects:

[0021] By combining the designed lifting components with the stamping components, not only can the stamping components directly drive the stamping plate to lift and lower for stamping operations, but the lifting components can also be flexibly used to drive the overall structure including the top plate, stamping components and stamping plates to lift and lower for stamping. Even after adjusting the position of the top plate, the stamping components can continue to be used to complete the stamping task, thereby improving the flexibility and convenience of the equipment.

[0022] Furthermore, an auxiliary folding component is introduced, in which the layout of the telescopic cylinder 1, folding support, folding top plate, folding push block, folding plate, connecting plate and elastic rope together constitutes an efficient folding mechanism. While the punching plate is pressed down for punching, the folding top plate will drive the folding push block to move toward the bottom support plate, and then drive the folding plate to rotate through the connecting plate to complete the folding operation of the back plate. This process realizes the integration of stamping and folding, which meets the requirements of shaping processing in the production of LED display back plates.

[0023] In addition, the height of the folding top plate and the folding support are adjustable, which not only enhances the coordination of stamping and folding operations, but also significantly improves the adaptability of the folding plate to backboard materials of different thicknesses and models, thereby ensuring the stability and efficiency of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a punching machine for producing and shaping a back panel of an LED display provided by an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0026] Figure 3 for Figure 1 Another perspective structural diagram of;

[0027] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part B;

[0028] Figure 5 A schematic diagram of the main partial cross-sectional structure of the folding top plate, folding push block and folding plate part of the punching machine for producing and shaping the back plate of an LED display provided by an embodiment of the present invention;

[0029] Figure 6 for Figure 5 Schematic diagram of the structure when the middle folding top plate pushes the folding push block to fold the edge.

[0030] In the figure: 1-machine base, 2-telescopic cylinder one, 3-folding support, 4-notch, 5-stamping plate, 6-machine top plate, 7-guide column, 8-telescopic cylinder two, 9-telescopic cylinder three, 10-machine side frame, 11-fixing bolt one, 12-stamping transmission part, 13-folding top plate, 14-fixing bolt two, 15-bottom support plate, 16-die, 17-punch, 18-guide rail, 19-folding push block, 20-folding plate, 21-connecting plate, 22-U-shaped guard plate, 23-hanging plate, 24-transmission rod one, 25-transmission rod two, 26-hinge support one, 27-transmission rod three, 28-hinge support two, 29-telescopic guide rod, 30-hinge support three, 31-elastic rope, 32-guide groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] like Figure 1-Figure 6As shown, a punching machine for the production and shaping of the back panel of an LED display provided by an embodiment of the present invention includes a machine base 1 and a plurality of guide pillars 7 fixed thereon, a bottom support plate 15 is fixed on the plurality of guide pillars 7, a die 16 is fixed on the upper side of the bottom support plate 15, a punching plate 5 is slidably provided on the plurality of guide pillars 7 above the bottom support plate 15, a punch 17 for cooperating with the die 16 for back panel punching is fixed on the lower side of the punching plate 5, the die 16 and the punch 17 can be arranged as required without limitation, for example, the die 16 and the punch 17 can be arranged in suitable shapes and punches, etc., and a waste outlet can be opened on the bottom support plate 15 to facilitate the waste generated by stamping to fall off and improve the reliability of the application. It also includes:

[0034] A top plate 6 is slidably provided on the plurality of guide pillars 7 above the stamping plate 5; a lifting assembly is also fixed on the machine base 1, and the output end of the lifting assembly is fixedly connected to the top plate 6, and the lifting assembly is used to drive the top plate 6 to rise and fall;

[0035] A stamping assembly, the stamping assembly is mounted on the top plate 6 and connected to the stamping plate 5, and the stamping assembly is used to drive the stamping plate 5 to rise and fall;

[0036] Auxiliary folding assembly, the auxiliary folding assembly includes a telescopic cylinder 2, a folding support 3, a folding top plate 13, a folding push block 19, a folding plate 20, a connecting plate 21 and an elastic rope 31, the outer side of the bottom support plate 15 is provided with a folding support 3, a notch 4 is opened on the folding support 3, a folding push block 19 is slidably provided on the notch 4, and the folding support 3 is hinged at one end close to the bottom support plate 15 to be used for folding the back plate. The folding plate 20 is also connected to the folding push block 19 through the connecting plate 21, and the folding plate 20 is also connected to the folding support 3 through the elastic rope 31 Then, the elastic rope 31 is used to rotate the movable end of the folding plate 20 away from the die 16. A telescopic cylinder 2 is also fixed to the lower side of the folding support 3, and the lower end of the telescopic cylinder 2 is fixed to the machine base 1; the outer side of the stamping plate 5 can be longitudinally adjusted and moved to install a folding top plate 13 that cooperates with the folding push block 19. When the stamping plate 5 moves downward for stamping, the folding top plate 13 pushes the folding push block 19 to move towards the direction close to the bottom support plate 15, so that the connecting plate 21 pushes the folding plate 20 to rotate to perform folding operations on the back plate.

[0037] In the embodiment of the present invention, by designing a lifting assembly and a stamping assembly, not only can the stamping assembly directly drive the stamping plate 5 to lift and lower for stamping operations, but the lifting assembly can also be flexibly used to drive the overall structure including the top plate 6, the stamping assembly and the stamping plate 5 to lift and lower for stamping. Even after adjusting the position of the top plate 6, the stamping assembly can continue to rely on the stamping task, thereby improving the flexibility and convenience of the equipment.

[0038] Furthermore, an auxiliary folding component is introduced, wherein the layout of the telescopic cylinder 2, the folding support 3, the folding top plate 13, the folding push block 19, the folding plate 20, the connecting plate 21 and the elastic rope 31 together constitutes an efficient folding mechanism. While the punching plate 5 is pressed down for punching, the folding top plate 13 will drive the folding push block 19 to move toward the bottom support plate 15, and then drive the folding plate 20 to rotate through the connecting plate 21 to complete the folding operation of the back plate. This process realizes the integration of stamping and folding, which meets the requirements for shaping processing in the production of LED display back plates.

[0039] In addition, the height of the folding top plate 13 and the folding support 3 are both adjustable, which not only enhances the coordination of stamping and folding operations, but also significantly improves the adaptability of the folding plate 20 to back panel materials of different thicknesses and models, thereby ensuring the stability and efficiency of the production process.

[0040] like Figure 1-Figure 3 , Figure 5-Figure 6 As shown, as a preferred embodiment of the present invention, the punching machine for the production and shaping of the back panel of the LED display further includes a fixing component (not shown) for fixing the back panel material to be punched on the die 16. The structure of the fixing component is not limited, as long as the stability of the back panel material to be punched can be ensured, thereby meeting the requirements of integrated punching and folding. Specifically, the fixing component may include a telescopic cylinder 4 and a fixing plate, the telescopic cylinder 4 is fixed on the bottom support plate 15, and the output end of the telescopic cylinder 4 is fixed to the fixing plate for pressing and fixing the back panel material to be punched.

[0041] The auxiliary folding components can be arranged on the outer side of the bottom support plate 15 as needed. The figure shows that one group is arranged on each side along the length direction thereof.

[0042] The folding top plate 13 is slidably connected to the stamping plate 5, and a fixing bolt 14 for locking and fixing the folding top plate 13 is installed on the stamping plate 5; guide rails 18 are fixed on both sides of the notch 4, and guide grooves 32 slidably connected to the guide rails 18 are correspondingly provided on both sides of the folding push block 19, so that the folding push block 19 can move stably; the lower end of the folding top plate 13 is inclined upward on the side close to the bottom support plate 15, and the upper end of the folding push block 19 is arranged parallel to the lower end of the folding top plate 13, which is conducive to the folding top plate 13 pushing the folding push block 19 to move.

[0043] One end of the folding plate 20 is hingedly connected to the folding support 3 through a hinge support 30; the two ends of the connecting plate 21 are respectively hingedly connected to the folding plate 20 and the folding push block 19; when there is no external force, under the elastic force of the elastic rope 31, the upper end surface of the folding plate 20 is located on the lower side of the upper end surface of the die 16, and the angle between the connecting plate 21 and the side surface of the folding push block 19 close to the bottom support plate 15 is less than 90°, thereby improving the reliability of operation.

[0044] A telescopic cylinder 2 is fixed to each of the four lower corners of the folding support 3 to improve the stability of the height adjustment of the folding support 3.

[0045] In order to improve the reliability of the folding support 3 and the folding, an installation opening is opened on the outer side of the bottom support plate 15, a U-shaped guard plate 22 is fixed on the lower side of the installation opening, and the folding support 3 is slidingly connected to the inner wall of the U-shaped guard plate 22. This arrangement enables the folding plate 20 to cooperate more closely with the back panel material to be stamped, and makes the folding support 3 more reliable to lift and lower.

[0046] like Figure 1 , Figure 3 and Figure 4 As shown, as a preferred embodiment of the present invention, four guide pillars 7 are conventionally arranged and distributed at the four corners of the top plate 6, the stamping plate 5 and the bottom support plate 15 to improve the overall stability.

[0047] The lifting assembly includes a telescopic cylinder three 9 and a machine side frame 10, the machine side frame 10 is fixed on the machine base 1, and a telescopic cylinder three 9 is fixed on the horizontal part of the machine side frame 10. The output end of the telescopic cylinder three 9 is connected and fixed to the machine top plate 6, and the machine top plate 6 can be driven to rise and fall through the telescopic cylinder three 9.

[0048] Preferably, a fixing bolt 11 is also installed on the outer side of the top plate 6 corresponding to the guide column 7, and the fixing bolt 11 is used to lock and fix the top plate 6 on the guide column 7. When the telescopic cylinder 3 9 is not used for stamping, the fixing bolt 11 can be locked as needed after adjusting the height of the top plate 6 to ensure the stability of the top plate 6, reduce the bearing capacity of the telescopic cylinder 3 9, and improve reliability.

[0049] The stamping assembly includes a telescopic cylinder 28 and a stamping transmission member 12. The telescopic cylinder 28 is installed and fixed in the middle of the top of the machine top plate 6. The stamping transmission member 12 includes a hanging plate 23, a transmission rod 1 24, a transmission rod 25, a hinge support 1 26 and a transmission rod 3 27. A hinge support 1 26 is fixed to each of the two ends of the upper side of the stamping plate 5. A hanging plate 23 is fixed above the hinge support 1 26 on the corresponding lower side of the machine top plate 6. A transmission rod 25 is hinged on the hinge support 1 26. A transmission rod 1 24 is hinged on the lower end of the hanging plate 23. One end of the transmission rod 1 24 away from the hanging plate 23 and one end of the transmission rod 25 away from the hinge support 1 26 are both hinged to one end of the transmission rod 3 27. The other end of the transmission rod 3 27 is hinged to the output end of the telescopic cylinder 28 through the hinge support 28.

[0050] Preferably, the stamping assembly also includes a telescopic guide rod 29. Telescopic guide rods 29 are provided on both sides of the stamping transmission member 12. The two ends of the telescopic guide rod 29 are respectively fixedly connected to the top plate 6 and the stamping plate 5. The telescopic guide rod 29 adopts a damping telescopic structure. By matching the telescopic guide rod 29 and the stamping transmission member 12, the reliability of controlling the lifting and lowering of the stamping plate 5 is further improved.

[0051] Preferably, the transmission rod 1 24 , the transmission rod 25 and the transmission rod 3 27 are of the same length, thereby improving the reliability of the stamping transmission.

[0052] Preferably, a counterweight block (not shown) is also installed on the stamping plate 5, so that after the telescopic cylinder 2 8 releases the transmission rod 3 27, the gravity of the stamping plate 5, the punch 17 and the counterweight block is used to complete the stamping process of the back plate material to be stamped.

[0053] In use, when the telescopic cylinder 2 8 is extended, its power is transmitted through the downward movement of the transmission rod 3 27. The articulation between the transmission rod 1 24, the transmission rod 25 and the transmission rod 3 27, as well as the gravity of the punching plate 5, the punch 17 and the counterweight block, increases the angle between the transmission rod 1 24 and the transmission rod 2 25, thereby driving the punching plate 5 to descend steadily to perform the punching action. Conversely, when the telescopic cylinder 2 8 is retracted, the reverse motion process is performed, which will not be described in detail.

[0054] It is worth mentioning that this special layout of the stamping transmission member 12 not only significantly enhances the stability of the transmission of the telescopic cylinder 2 8 to the stamping plate 5, but also further improves the overall work efficiency and service life. In addition, the additional telescopic guide rod 29, as a key auxiliary component, effectively improves the stability of the stamping process and ensures the quality of the final molded product from multiple dimensions.

[0055] The above embodiment of the present invention provides a punching machine for producing and shaping the back panel of an LED display, and its main features are as follows:

[0056] 1) Through the combination of the lifting assembly and the stamping assembly, not only can the stamping assembly directly drive the stamping plate 5 to lift and lower for stamping operations, but it can also drive the structure including the top plate 6, the stamping assembly and the stamping plate 5 to lift and lower for stamping as a whole. It can even continue to use the stamping assembly for stamping after adjusting the position of the top plate 6, thereby improving the flexible operability and ease of use of the equipment.

[0057] 2) The auxiliary folding components introduced include a telescopic cylinder 2, a folding support 3, a folding top plate 13, a folding push block 19, a folding plate 20, a connecting plate 21 and an elastic rope 31, etc., which realize the simultaneous operation of stamping and folding. During the stamping process, the folding mechanism is automatically started to complete the folding of the back plate. This integrated design improves production efficiency and reduces the conversion time between processes.

[0058] 3) The heights of the folding top plate 13 and the folding support 3 are both adjustable, which not only enhances the coordination of the stamping and folding operations, but also enables the folding plate 20 to flexibly adapt to backboard materials of different thicknesses and models, thereby improving the versatility and production stability of the equipment.

[0059] 4) The layout of the stamping transmission member 12 utilizes the articulation and gravity between the transmission rod 1 24, the transmission rod 25 and the transmission rod 3 27 to ensure the smooth lifting of the stamping plate 5, and significantly enhances the stability of the transmission of the telescopic cylinder 2 8 to the stamping plate 5, which not only improves the work efficiency, but also extends the service life of the equipment.

[0060] 5) The additional telescopic guide rod 29 is a key auxiliary component, which effectively improves the stability of the stamping process, reduces vibration and impact, and thus ensures the quality of the final molded product from multiple dimensions.

[0061] In addition, the control of each component can be carried out by using a PLC controller disclosed in the prior art, and the model and circuit connection of each component are not specifically limited and can be flexibly set in actual application.

[0062] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A punching machine for producing and shaping a back panel of an LED display, comprising a machine base (1) and a plurality of guide pillars (7) fixed thereon; A bottom support plate (15) is fixed on the plurality of guide pillars (7), and a concave mold (16) is fixed on the upper side of the bottom support plate (15); A punching plate (5) is slidably provided on the plurality of guide pillars (7) above the bottom support plate (15), and a punch (17) is fixed on the lower side of the punching plate (5) for cooperating with the die (16) to punch the back plate, wherein: Also includes: A set top plate (6), wherein a set top plate (6) is slidably provided above the stamping plate (5) on the plurality of guide pillars (7); a lifting assembly is also fixed on the machine base (1), the output end of the lifting assembly is fixedly connected to the set top plate (6), and the lifting assembly is used to drive the set top plate (6) to move up and down; A stamping assembly, the stamping assembly being mounted on the top plate (6) and connected to the stamping plate (5), the stamping assembly being used to drive the stamping plate (5) to move up and down; An auxiliary hemming assembly, the auxiliary hemming assembly comprising a telescopic cylinder (2), a hemming support (3), a hemming top plate (13), a hemming push block (19), a hemming plate (20), a connecting plate (21) and an elastic rope (31); A folding support (3) is provided on the outer side of the bottom support plate (15), a notch (4) is provided on the folding support (3), a folding push block (19) is slidably provided on the notch (4), a folding plate (20) for folding the back plate is hingedly provided at one end of the folding support (3) close to the bottom support plate (15), the folding plate (20) is further connected to the folding push block (19) via a connecting plate (21), and the folding plate (20) is further connected to the folding support (3) via an elastic rope (31), and the elastic rope (31) is used to rotate the movable end of the folding plate (20) in a direction away from the concave mold (16); A telescopic cylinder 1 (2) is also fixed to the lower side of the folding support (3), and the lower end of the telescopic cylinder 1 (2) is fixed to the machine base (1); The outer side of the punching plate (5) is longitudinally adjustable and movable with a folding top plate (13) that matches the folding push block (19); When the punching plate (5) moves downward to perform punching, the folding top plate (13) pushes the folding push block (19) to move in a direction close to the bottom support plate (15), so that the connecting plate (21) pushes the folding plate (20) to rotate and perform a folding operation on the back plate.

2. The punching machine for producing and shaping the back panel of an LED display according to claim 1, characterized in that: The punching machine used for producing and shaping the back panel of an LED display further comprises a fixing component used for fixing the back panel material to be punched on the concave die (16).

3. The punching machine for producing and shaping the back panel of an LED display according to claim 1 or 2, characterized in that: The folding top plate (13) and the punching plate (5) are slidably connected, and the punching plate (5) is provided with two fixing bolts (14) for locking and fixing the folding top plate (13); Guide rails (18) are fixed on both sides of the notch (4), and guide grooves (32) slidably connected to the guide rails (18) are correspondingly provided on both sides of the folding push block (19); The lower end of the folded edge top plate (13) is inclined upward on the side close to the bottom support plate (15), and the upper end of the folded edge push block (19) is arranged parallel to the lower end of the folded edge top plate (13).

4. The punching machine for producing and shaping the back panel of an LED display according to claim 3, characterized in that: One end of the folding plate (20) is hingedly connected to the folding support (3) via a hinge support three (30); The two ends of the connecting plate (21) are respectively hingedly connected to the folding plate (20) and the folding push block (19); When there is no external force, under the elastic force of the elastic rope (31), the upper end surface of the folding plate (20) is located below the upper end surface of the die (16), and the angle between the connecting plate (21) and a side surface of the folding push block (19) close to the bottom support plate (15) is less than 90 degrees.

5. The punching machine for producing and shaping the back panel of an LED display according to claim 4, characterized in that: A telescopic cylinder (2) is fixed to each of the four lower corners of the folding support (3); The outer side of the bottom support plate (15) is provided with a mounting opening, a U-shaped guard plate (22) is fixed to the lower side of the mounting opening, and the folded edge support (3) is slidably connected to the inner wall of the U-shaped guard plate (22).

6. The punching machine for producing and shaping the back panel of an LED display according to claim 1, characterized in that: The lifting assembly comprises a telescopic cylinder three (9) and a machine side frame (10); The machine side frame (10) is fixed on the machine base (1), and a telescopic cylinder three (9) is fixed on the horizontal part of the machine side frame (10), and the output end of the telescopic cylinder three (9) is connected and fixed to the machine top plate (6).

7. The punching machine for producing and shaping the back panel of an LED display according to claim 1 or 6, characterized in that: A fixing bolt (11) is also installed on the outer side of the top plate (6) corresponding to the guide column (7), and the fixing bolt (11) is used to lock and fix the top plate (6) on the guide column (7).

8. The punching machine for producing and shaping the back panel of an LED display according to claim 1, characterized in that: The stamping assembly comprises a second telescopic cylinder (8) and a stamping transmission member (12); The second telescopic cylinder (8) is installed and fixed in the middle of the top of the machine top plate (6); The stamping transmission member (12) comprises a hanging plate (23), a transmission rod 1 (24), a transmission rod 2 (25), a hinge support 1 (26) and a transmission rod 3 (27); A hinge support 1 (26) is fixed to both ends of the upper side of the punching plate (5), a hanging plate (23) is fixed above the hinge support 1 (26) and corresponds to the lower side of the machine top plate (6), a transmission rod 2 (25) is hingedly connected to the hinge support 1 (26), a transmission rod 1 (24) is hingedly connected to the lower end of the hanging plate (23), one end of the transmission rod 1 (24) away from the hanging plate (23) and one end of the transmission rod 2 (25) away from the hinge support 1 (26) are both hingedly connected to one end of the transmission rod 3 (27), and the other end of the transmission rod 3 (27) is hingedly connected to the output end of the telescopic cylinder 2 (8) through the hinge support 2 (28).

9. The punching machine for producing and shaping the back panel of an LED display according to claim 8, characterized in that: The punching assembly further comprises a telescopic guide rod (29); Telescopic guide rods (29) are provided on both sides of the punching transmission member (12), and the two ends of the telescopic guide rods (29) are respectively fixedly connected to the machine top plate (6) and the punching plate (5); The telescopic guide rod (29) adopts a damping telescopic structure.

10. The punching machine for producing and shaping the back panel of an LED display according to claim 8, characterized in that: The transmission rod 1 (24), the transmission rod 2 (25) and the transmission rod 3 (27) have the same length; A counterweight block is also installed on the stamping plate (5).

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