A kind of forming equipment for bending and chamfering the border of a letter tray in one step and its forming method

Abstract

The present invention discloses a device for one-time forming of folding and chamfering of a letter tray frame, which includes a workbench. A support frame is fixedly connected to the upper surface of the workbench. Both ends of the upper surface of the support frame are rotatably connected with first reciprocating lead screws. The circumferential surfaces of the first reciprocating lead screws are threadedly connected with moving plates. A pressing plate is fixedly connected to the lower surface of the moving plate. A cutting mechanism and an upper die are arranged on the lower surface of the pressing plate. A bending mechanism is arranged on the side surface of the workbench; a groove is arranged inside the workbench. A second reciprocating lead screw is rotatably connected inside the groove. The circumferential surface of the second reciprocating lead screw is threadedly connected with a moving block. A movable rod is slidably connected inside the moving block. A limiting rod is fixedly connected inside the movable rod. Limiting grooves are arranged on both sides of the groove, and the two ends of the limiting rod are slidably connected inside the limiting grooves. In the present invention, the cutting and bending operations can be completed at one time, reducing the working steps and improving the working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of frame processing, and particularly relates to a device for forming a letter tray frame by bending and chamfering in one step and a forming method thereof. Background Art

[0002] Aluminum alloy frames generally play a role in protection and support. For example, some electrical screens, LED screens, electronic screens, photovoltaic solar glass plates, etc. all use aluminum alloy frames. Aluminum alloy frames are light, grand, high in hardness, not easily corroded, and good in formability, and are very popular.

[0003] In the actual production process of the current letter tray frame, workers need to first cut the frame raw material into appropriate sizes, and then place the cut material on a stamping die for bending operation. Therefore, loading and unloading operations are required, resulting in reduced processing efficiency, and the problem that workers are prone to accidentally touch the machine equipment during the loading and unloading process, thus causing potential safety hazards. Summary of the Invention

[0004] In order to overcome the above technical problems, the purpose of the present invention is to provide a device for forming a letter tray frame by bending and chamfering in one step and a forming method thereof to solve the above-mentioned problems.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] 1. A device for forming a letter tray frame by bending and chamfering in one step, including a workbench, wherein the upper surface of the workbench is fixedly connected with a support frame, both ends of the upper surface of the support frame are rotatably connected with first reciprocating lead screws, the circumferential surfaces of the first reciprocating lead screws are threadedly connected with moving plates, the lower surface of the moving plate is fixedly connected with a pressing plate, the lower surface of the pressing plate is provided with a cutting mechanism and an upper die, and a bending mechanism is arranged on the side surface of the workbench;

[0007] A groove is arranged inside the workbench, a second reciprocating lead screw is rotatably connected inside the groove, the circumferential surface of the second reciprocating lead screw is threadedly connected with a moving block, an activity rod is slidably connected inside the moving block, a limiting rod is fixedly connected inside the activity rod, limiting grooves are arranged on both sides of the groove, and both ends of the limiting rod are slidably connected inside the limiting grooves, and a pushing block is fixedly connected to the upper surface of the activity rod;

[0008] One end of the workbench is rotatably connected with a rotating rod, a conveyor belt is drivingly connected between the rotating rods, a transmission mechanism is arranged on the back surface of the workbench, and the rotating rod drives the first reciprocating lead screw and the second reciprocating lead screw to rotate synchronously through the transmission mechanism.

[0009] Furthermore, the cutting mechanism includes a cutter fixedly connected to the lower surface of the moving plate and a pressing plate slidably connected inside the moving plate. A cutting groove is provided inside the workbench and directly below the cutter. A first spring is fixedly connected between the pressing plate and the moving plate, and a roller is rotatably connected to the lower surface of the pressing plate.

[0010] Furthermore, the bending mechanism includes a lower die fixedly connected to the side surface of the workbench. The lower die is directly below the upper die. A ejector rod is slidably connected inside the lower die, and a third spring is fixedly connected between the ejector rod and the lower die.

[0011] Furthermore, the shape of the limiting groove is set as a parallelogram, and a second spring is fixedly connected between the pushing block and the moving block.

[0012] Furthermore, the transmission mechanism includes an incomplete gear rotatably connected to the back of the workbench. One end of the rotating rod is fixedly connected with a first gear, and the first gear meshes with the incomplete gear, and the teeth of the first gear are in contact with the circumferential surface of the incomplete gear.

[0013] Furthermore, fourth pulleys are fixedly connected to the circumferential surface of the incomplete gear and one end of the second reciprocating lead screw respectively. Third pulleys are fixedly connected to one end of both second reciprocating lead screws respectively. A second bevel gear is rotatably connected to the upper surface of the support frame, and second pulleys are fixedly connected to one end of the second bevel gear and one end of the second reciprocating lead screw respectively. First pulleys are fixedly connected to one end of the first reciprocating lead screw respectively. A first bevel gear is fixedly connected to one end of the first reciprocating lead screw, and the first bevel gear meshes with the second bevel gear. The first pulleys, the second pulleys, the third pulleys and the fourth pulleys are all connected by belt drives.

[0014] Furthermore, a motor is fixedly connected to the back of the workbench, and the output end of the motor is fixedly connected to one end of the incomplete gear.

[0015] A method for one-time forming of the bending and chamfering of a letter tray frame, the forming method comprising the following steps:

[0016] S1: Place the material body on the conveyor belt and turn on the motor to work;

[0017] S2: The motor drives the rotating rod to rotate intermittently through the transmission mechanism and synchronously rotates the first reciprocating lead screw and the second reciprocating lead screw;

[0018] S3: The rotating rod rotates intermittently and drives the conveyor belt to move a certain distance to send the material body to a suitable position;

[0019] S4: The first reciprocating lead screw drives the moving plate at one end of the moving rod to descend. The descending of the moving plate drives the upper die and the lower die to contact each other to perform stamping and bending operations on the material body, and at the same time drives the pressing plate and the blade to cut the material body.

[0020] S5: While the first reciprocating lead screw ascends, the pushing block is driven by the second reciprocating lead screw and pushes the cut material body onto the surface of the lower die and pushes out the material body after stamping. When the pushing block resets, it enters the interior of the groove. At this time, the conveyor belt moves intermittently again to repeat the above feeding operation.

[0021] Advantages of the present invention:

[0022] 1. By providing a cutting mechanism, a first reciprocating lead screw and a moving rod, the moving plate can be driven to perform reciprocating up and down movements. At the same time, the moving plate drives the cutting mechanism to perform stamping and cutting operations on the material, and can also perform bending operations on the parts by the cooperation of the upper die and the lower die. The cutting and bending operations can be completed at one time, reducing the working steps and improving the working efficiency.

[0023] 2. By providing a second reciprocating lead screw, a moving block, a limiting rod and a limiting groove, the cut material body can be pushed above the lower die for feeding operation. During the feeding operation, the material after bending can also be pushed out of the lower die, thus facilitating the feeding and discharging operations and avoiding the problem of potential safety hazards caused by the operator accidentally touching the machine during feeding and discharging.

[0024] 3. By providing a conveyor belt, a rotating rod and a transmission mechanism, the conveyor belt can be intermittently driven to feed the material body, reducing the working intensity of the operator for feeding. And through the transmission mechanism, multiple sets of mechanisms can be driven to move synchronously, without the need for multiple control devices to control separately, reducing the economic cost. Description of the drawings

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2 is the front structural sectional view of the present invention;

[0028] Figure 3 is the side structural sectional view of the present invention;

[0029] Figure 4 is the back view of the overall structure of the present invention;

[0030] Figure 5 is the structural schematic diagram of the present invention from another perspective;

[0031] Figure 6It is a schematic structural diagram of the second reciprocating lead screw in the present invention.

[0032] In the figure: 1, workbench; 2, support frame; 3, first reciprocating lead screw; 4, moving rod; 5, moving plate; 6, cutting tool; 7, pressing plate; 8, first spring; 9, rotating rod; 10, conveyor belt; 11, first gear; 12, groove; 13, second reciprocating lead screw; 14, movable rod; 15, limiting rod; 16, second spring; 17, pushing plate; 18, limiting groove; 19, first belt pulley; 20, first bevel gear; 21, second bevel gear; 22, second belt pulley; 23, third belt pulley; 24, fourth belt pulley; 25, motor; 26, incomplete gear; 27, upper die; 28, lower die; 29, ejector rod; 30, third spring; 31, material body; 32, moving block. Specific embodiments

[0033] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0034] Please refer to Figures 1-6 As shown, a one-time forming device for bending and chamfering the border of a letter tray includes a workbench 1. Both ends of the upper surface of the workbench 1 are fixedly connected with a support frame 2. Both ends of the upper surface of the support frame 2 are rotatably connected with a first reciprocating lead screw 3. The circumferential surfaces of the first reciprocating lead screws 3 are threadedly connected with a moving plate 5. The lower surface of the moving plate 5 is fixedly connected with a pressing plate 7. A cutting mechanism and an upper die 27 are arranged on the lower surface of the pressing plate 7. A bending mechanism is arranged on the side surface of the workbench 1;

[0035] A groove 12 is arranged inside the workbench 1. A second reciprocating lead screw 13 is rotatably connected inside the groove 12. The circumferential surface of the second reciprocating lead screw 13 is threadedly connected with a moving block 32. A movable rod 14 is slidably connected inside the moving block 32. A limiting rod 15 is fixedly connected inside the movable rod 14. Limiting grooves 18 are arranged on both sides of the groove 12, and both ends of the limiting rod 15 are slidably connected inside the limiting grooves 18. A pushing block is fixedly connected to the upper surface of the movable rod 14;

[0036] One end of the workbench 1 is rotatably connected with a rotating rod 9. A conveyor belt 10 is drivingly connected between the rotating rods 9. A transmission mechanism is arranged on the back surface of the workbench 1. The rotating rod 9 drives the first reciprocating lead screw 3 and the second reciprocating lead screw 13 to rotate synchronously through the transmission mechanism.

[0037] When the device is used, the motor 25 is turned on to drive the transmission mechanism to work, which can synchronously drive the first reciprocating screw 3 and the second reciprocating screw 13 to rotate, and drive the rotating rod 9 to rotate intermittently. When the rotating rod 9 rotates, it drives the conveyor belt 10 to rotate. The transmission belt drives the material body 31 to move to a specified position and then stops rotating. At this time, the first reciprocating screw 3 drives the moving plate 5 at one end of the moving rod 4 to move downward. The moving plate 5 slides on the surface of the support frame 2 and drives the cutting mechanism and the upper mold 27 to move. The cutting mechanism performs a cutting operation on the material body 31. At this time, the second reciprocating screw 13 rotates and drives the push block at the upper end of the moving block 32 to slide, and the push block pushes the cut material body 31 to slide. At this time, the limit rod 15 is located in the upper parallel section of the limit groove 18. When the push block pushes the material body 31 to the position of the lower mold 28, the limit rod 15 is located at the lower parallel end of the limit groove 18 and slides, so that the movable rod 14 squeezes the second spring 16 to drive the push block to descend into the interior of the groove 12. At this time, the conveyor belt 10 and the movable plate 5 repeat the above operation to perform a molding operation on the material body 31.

[0038] The cutting mechanism includes a tool 6 fixedly connected to the lower surface of the movable plate 5 and a pressure plate 7 slidably connected to the inside of the movable plate 5. A cutting groove is provided inside the workbench 1 and directly below the tool 6. A first spring 8 is fixedly connected between the pressure plate 7 and the movable plate 5, and a roller is rotatably connected to the lower surface of the pressure plate 7.

[0039] The movable plate 5 drives the pressure plate 7 to descend and squeezes the first spring 8 to slide inside the movable plate 5. At this time, the pressure plate 7 contacts the upper surface of the material body 31 to press the material body 31. At the same time, the movable plate 5 drives the cutting knife to enter the cutting groove to cut the material body 31. When the movable plate 5 rises, the push block pushes the material body 31 to move, and the pressure plate 7 facilitates the sliding operation of the material body 31 through the pulley.

[0040] The bending mechanism includes a lower die 28 fixedly connected to the side surface of the workbench 1 , the lower die 28 is located directly below the upper die 27 , a push rod 29 is slidably connected inside the lower die 28 , and a third spring 30 is fixedly connected between the push rod 29 and the lower die 28 .

[0041] The movable plate 5 drives the upper mold 27 to descend. When the upper mold 27 performs a stamping operation on the material body 31 inside the lower mold 28, the push rod 29 stretches the third spring 30 to move downward by one end. After the stamping is completed, the upper mold 27 is reset, and the push rod 29 is reset through the third spring 30 to drive the material body 31 after the stamping to separate from the lower mold 28, thereby facilitating the subsequent loading of the material body 31 and ejecting the completed material body 31.

[0042] The shape of the limiting groove 18 is set to be a parallelogram, and a second spring 16 is fixedly connected between the push block and the moving block 32.

[0043] When the limiting rod 15 moves to the upper parallel section of the limiting groove 18, the pushing block protrudes from the groove 12 at this time, and the material body 31 can be pushed out. When the limiting rod 15 is located at the lower parallel section of the limiting groove 18, the pushing block enters the inside of the groove 12 to facilitate the feeding operation of the material body 31.

[0044] The transmission mechanism includes an incomplete gear 26 rotatably connected to the back of the workbench 1. One end of the rotating rod 9 is fixedly connected with a first gear 11, and the first gear 11 meshes with the incomplete gear 26, and the teeth of the first gear 11 are in contact with the circumferential surface of the incomplete gear 26.

[0045] When the incomplete gear 26 meshes with the first gear 11, the conveyor belt 10 on the surface of the rotating rod 9 can be driven to perform the feeding operation. When the incomplete gear 26 and the first gear 11 are not meshed, the surface of the first gear 11 and the surface of the incomplete gear 26 are tangent to limit the first gear 11.

[0046] Both the circumferential surface of the incomplete gear 26 and one end of the second reciprocating lead screw 13 are fixedly connected with fourth belt pulleys 24. One end of each of the two second reciprocating lead screws 13 is fixedly connected with a third belt pulley 23. The upper surface of the support frame 2 is rotatably connected with a second bevel gear 21, and one end of the second bevel gear 21 and one end of the second reciprocating lead screw 13 are both fixedly connected with second belt pulleys 22. One end of the first reciprocating lead screw 3 is fixedly connected with a first belt pulley 19. One end of the first reciprocating lead screw 3 is fixedly connected with a first bevel gear 20, and the first bevel gear 20 meshes with the second bevel gear 21. The first belt pulleys 19, the second belt pulleys 22, the third belt pulleys 23 and the fourth belt pulleys 24 are all connected by belt drives.

[0047] When the incomplete gear 26 rotates, the second reciprocating lead screw 13 can be driven to rotate through the fourth belt pulley 24. The second reciprocating lead screw 13 can drive another second reciprocating lead screw 13 to rotate synchronously through the third belt pulley 23. The second reciprocating lead screw 13 can drive the second bevel gear 21 to rotate through the second belt pulley 22. The second bevel gear 21 and the first bevel gear 20 mesh to drive the first reciprocating lead screw 3 to rotate. The first reciprocating lead screw 3 can drive another first reciprocating lead screw 3 to rotate synchronously through the first belt pulley 19, and the bending, cutting and feeding one-time forming operation can be realized.

[0048] A motor 25 is fixedly connected to the back of the workbench 1, and the output end of the motor 25 is fixedly connected to one end of the incomplete gear 26.

[0049] It is convenient to drive the incomplete gear 26 to rotate to provide power.

[0050] A method for one-time forming of the bending and chamfering of a letter tray frame, the forming method includes the following steps:

[0051] S1: Place the material body 31 on the conveyor belt 10 and turn on the motor 25 to operate.

[0052] S2: The motor 25 drives the rotating rod 9 to rotate intermittently through the transmission mechanism and synchronously rotates the first reciprocating lead screw 3 and the second reciprocating lead screw 13.

[0053] S3: The rotating rod 9 rotates intermittently and drives the conveyor belt 10 to move a certain distance to send the material body 31 to a suitable position.

[0054] S4: The first reciprocating lead screw 3 drives the moving plate 5 at one end of the moving rod 4 to descend. The descent of the moving plate 5 drives the upper die 27 and the lower die 28 to contact to perform a stamping and bending operation on the material body 31, and at the same time drives the pressing plate 7 and the blade to cut the material body 31.

[0055] S5: While the first reciprocating lead screw 3 ascends, the pushing block is driven by the second reciprocating lead screw 13 to push the cut material body 31 onto the surface of the lower die 28 and push out the material body 31 after stamping. When the pushing block resets, it enters the inside of the groove 12. At this time, the conveyor belt 10 moves intermittently again to repeat the above feeding operation.

[0056] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0057] The above content is only an example and illustration of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar ways to replace them. As long as they do not deviate from the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. A forming device for bending and chamfering a letter tray frame in one step, characterized in that, It includes a workbench (1), on the upper surface of the workbench (1) is fixedly connected with a support frame (2), at both ends of the upper surface of the support frame (2) are rotatably connected with first reciprocating lead screws (3), on the circumferential surfaces of the first reciprocating lead screws (3) are threadedly connected with moving plates (5), on the lower surface of the moving plates (5) is fixedly connected with a pressing plate (7), on the lower surface of the pressing plate (7) are arranged a cutting mechanism and an upper die (27), on the side surface of the workbench (1) is arranged a bending mechanism; inside the workbench (1) is provided with a groove (12), inside the groove (12) is rotatably connected with a second reciprocating lead screw (13), on the circumferential surface of the second reciprocating lead screw (13) is threadedly connected with a moving block (32), inside the moving block (32) is slidably connected with a movable rod (14), inside the movable rod (14) is fixedly connected with a limiting rod (15), on both sides of the groove (12) are provided with limiting grooves (18), and the two ends of the limiting rod (15) are slidably connected with the inside of the limiting grooves (18), on the upper surface of the movable rod (14) is fixedly connected with a pushing block; at one end of the workbench (1) is rotatably connected with a rotating rod (9), between the rotating rods (9) is drivingly connected with a conveyor belt (10), on the back surface of the workbench (1) is arranged a transmission mechanism, and the rotating rod (9) drives the first reciprocating lead screw (3) and the second reciprocating lead screw (13) to rotate synchronously through the transmission mechanism; the transmission mechanism includes an incomplete gear (26) rotatably connected to the back surface of the workbench (1), at one end of the rotating rod (9) is fixedly connected with a first gear (11), and the first gear (11) and the incomplete gear (26) are meshed with each other, and the teeth of the first gear (11) are in contact with the circumferential surface of the incomplete gear (26); on the circumferential surface of the incomplete gear (26) and one end of the second reciprocating lead screw (13) are both fixedly connected with fourth belt pulleys (24), at one end of each of the two second reciprocating lead screws (13) is fixedly connected with a third belt pulley (23), on the upper surface of the support frame (2) is rotatably connected with a second bevel gear (21), and at one end of the second bevel gear (21) and one end of the second reciprocating lead screw (13) are both fixedly connected with second belt pulleys (22); at one end of each of the first reciprocating lead screws (3) is fixedly connected with a first belt pulley (19), at one end of the first reciprocating lead screw (3) is fixedly connected with a first bevel gear (20), and the first bevel gear (20) and the second bevel gear (21) are meshed with each other, and the first belt pulleys (19), the second belt pulleys (22), the third belt pulleys (23) and the fourth belt pulleys (24) are all drivingly connected by belts.

2. The one-time forming equipment for bending and chamfering the border of a letter tray according to claim 1, wherein, The cutting mechanism includes a cutter (6) fixedly connected to the lower surface of the moving plate (5) and a pressing plate (7) slidably connected inside the moving plate (5), inside the workbench (1) and directly below the cutter (6) is provided with a cutting groove, between the pressing plate (7) and the moving plate (5) is fixedly connected with a first spring (8), and on the lower surface of the pressing plate (7) is rotatably connected with a roller.

3. The one-time forming device for bending and chamfering the border of a letter tray according to claim 1, wherein, The bending mechanism includes a lower die (28) fixedly connected to the side surface of the workbench (1). The lower die (28) is located directly below the upper die (27). A ejector rod (29) is slidably connected inside the lower die (28), and a third spring (30) is fixedly connected between the ejector rod (29) and the lower die (28).

4. A one-time forming device for bending and chamfering the edge of a letter tray, according to claim 1, characterized in that The limiting groove (18) is shaped like a parallelogram, and a second spring (16) is fixedly connected between the push block and the moving block (32).

5. The one-time forming equipment for bending and chamfering the edge of a letter tray according to claim 1, characterized in that, A motor (25) is fixedly connected to the back of the workbench (1), and the output end of the motor (25) is fixedly connected to one end of an incomplete gear (26).

6. A method for one-time forming of a folding and chamfering of a letter tray border, characterized in that, Including the letter tray border bending and chamfering one-time forming equipment according to any one of claims 1-5, the forming method includes the following steps: S1: Place the material body (31) on the conveyor belt (10), and turn on the motor (25) to work; S2: The motor (25) drives the rotating rod (9) to rotate intermittently through the transmission mechanism and synchronously rotates the first reciprocating lead screw (3) and the second reciprocating lead screw (13); S3: The rotating rod (9) rotates intermittently, and drives the conveyor belt (10) to move a certain distance to send the material body (31) to a suitable position; S4: The first reciprocating lead screw (3) drives the moving plate (5) at one end of the moving rod (4) to descend. The descent of the moving plate (5) drives the upper die (27) and the lower die (28) to contact to perform a stamping and bending operation on the material body (31), and at the same time drives the pressing plate (7) and the blade to cut the material body (31); S5: While the first reciprocating lead screw (3) rises, the push block is driven by the second reciprocating lead screw (13) to push the cut material body (31) onto the surface of the lower die (28) and push out the stamped material body (31). When the push block resets, it enters the inside of the groove (12). At this time, the conveyor belt (10) moves intermittently again to repeat the feeding operation.

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