Ejection mechanism of stamping die

Abstract

The utility model is applicable to the technical field of stamping dies, and provides a stamping die ejection mechanism which comprises a main body frame, an air cylinder is fixedly connected to the upper surface of the main body frame, an upper die descends to perform stamping forming on materials in a lower die base through extension of the telescopic end of the air cylinder, and after stamping is completed, the upper die and the lower die are separated from each other. Two connecting rods are drawn close to the outer wall of the upper die through contraction of the telescopic end of an air cylinder, so that a sliding block drives equipment rods to move towards the center of an equipment frame, the two equipment rods get close to each other to push an ejector rod and an ejector plate to move upwards, and the ejector plate moves upwards to eject a stamped part; the pressure of the top plate on the part is detected through the weight sensor, when the weight sensor detects that the pressure exceeds a set value, the weight sensor sends a signal to the controller, and the controller controls the air cylinder to stop working, so that the telescopic end of the air cylinder is prevented from continuing to contract, and the top plate is prevented from continuing to rise to damage the part.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping dies, in particular to a stamping die ejection mechanism. Background Art

[0002] Stamping is a forming method that relies on a press and a die to apply external force to plates, strips, pipes and profiles to cause them to undergo plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the desired shape and size. The die used for stamping is called a stamping die, or simply a die. A stamping die is a special tool for batch processing materials (metal or non-metal) into the desired stamping parts.

[0003] After searching, the Chinese patent application number is: 202020769656.0, which discloses a stamping die ejection mechanism, which relates to the field of stamping die technology, and includes a base plate, a movable plate and a lower die. The top of the base plate is provided with a movable block and a bottom box fixedly connected thereto. A through hole is provided on the inner bottom wall of the lower die, and a push rod is inserted into the through hole. The push rod passes through the top of the bottom box and extends to the interior of the bottom box. The ejection mechanism of the stamping die drives the two movable blocks to move away from each other through the provided connecting rod during the descending process of the movable plate, and the two concave-convex blocks are pulled away from each other by the action of the pull rod. When the bottom of the ejector pin falls into the groove of the concave-convex block, the ejector pin is retracted into the inside of the through hole. After the stamping is completed, the movable plate is raised, and under the action of the connecting rod, the movable block and the pull rod, the two concave-convex blocks are brought close to each other, and the bottom of the ejector pin slides toward the convex end of the concave-convex block. The punched parts in the lower die are ejected by raising the ejector pin, thereby achieving the effect of automatic ejection and improving the efficiency of the stamping process. However, the equipment cannot control the pressure of the ejector pin, which may easily cause excessive pressure on the parts by the ejector pin, resulting in damage to the parts. Utility Model Content

[0004] The utility model provides a stamping die ejection mechanism, aiming to solve the problem in the prior art that the equipment cannot control the pressure of the ejector pin, which easily leads to excessive pressure exerted by the ejector pin on the parts, causing damage to the parts.

[0005] The utility model is implemented as follows: a stamping die ejection mechanism comprises a main frame, the upper surface of the main frame is fixedly connected with a cylinder, and the outer wall of the telescopic end of the cylinder is fixedly connected with an upper die, the lower inner wall of the main frame is fixedly connected with an equipment frame, and the upper surface of the equipment frame is fixedly connected with a lower die seat, the outer wall of the upper die is hinged with one end of a connecting rod, and the lower inner wall of the main frame is slidably connected with a slider, the slider is hinged between the other end of the connecting rod, and the outer wall of the slider is fixedly connected with an equipment rod, the equipment rod and the main frame are slidably connected, and the bottom inner wall of the lower die seat is slidably connected with a push rod, the upper surface of the push rod is fixedly connected with a weight sensor, and the upper surface of the weight sensor is fixedly connected with a top plate, the lower surface of the push rod is hinged with one end of a support rod, and the other end of the support rod is hinged with the equipment rod, the bottom inner wall of the main frame is fixedly connected with a controller, and the cylinder and the weight sensor are electrically connected to the controller.

[0006] Preferably, a roller is fixedly connected to the lower surface of the main frame.

[0007] Preferably, a guide rod is fixedly connected to the upper surface of the upper mold, and the guide rod is slidably connected to the main frame.

[0008] Preferably, a plastic pad is fixedly connected to the lower surface of the top plate.

[0009] Preferably, a limit plate is fixedly connected to the inner wall of the equipment frame.

[0010] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0011] By extending the telescopic end of the cylinder, the upper die is lowered to stamp the material in the lower die seat. After stamping is completed, the telescopic end of the cylinder is contracted to bring the two connecting rods closer to the outer wall of the upper die, so that the slider drives the equipment rod to move toward the center of the equipment frame. The two equipment rods approach each other, which can push the ejector rod and the ejector plate to move upward. The upward movement of the ejector plate can lift the stamped parts. The pressure of the ejector plate on the parts is detected by the weight sensor. When the weight sensor detects that the pressure exceeds the set value, the weight sensor sends a signal to the controller, and the controller controls the cylinder to stop working, preventing the telescopic end of the cylinder from continuing to contract and preventing the ejector plate from continuing to rise and causing damage to the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the front cross-sectional structure of the equipment frame of the utility model;

[0014] Figure 3It is a schematic diagram of the three-dimensional structure of the top plate of the utility model;

[0015] In the figure: 1. main frame; 2. cylinder; 3. upper mold; 4. guide rod; 5. equipment frame; 6. lower mold base; 7. connecting rod; 8. slider; 9. equipment rod; 10. support rod; 11. push rod; 12. top plate; 13. weight sensor; 14. controller; 15. plastic pad; 16. limit plate; 17. roller. DETAILED DESCRIPTION

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0017] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] The utility model embodiment provides a stamping die ejection mechanism, such as Figure 1-3 As shown, it includes a main frame 1, the upper surface of the main frame 1 is fixedly connected with a cylinder 2, and the outer wall of the telescopic end of the cylinder 2 is fixedly connected with an upper mold 3, the lower inner wall of the main frame 1 is fixedly connected with an equipment frame 5, and the upper surface of the equipment frame 5 is fixedly connected with a lower mold base 6, the outer wall of the upper mold 3 is hinged with one end of a connecting rod 7, and the lower inner wall of the main frame 1 is slidably connected with a slider 8, the slider 8 is hinged between the other end of the connecting rod 7, and the outer wall of the slider 8 is fixedly connected with an equipment rod 9, the equipment rod 9 and the main frame 1 are slidably connected, and the bottom inner wall of the lower mold base 6 is slidably connected with a push rod 11, the upper surface of the push rod 11 is fixedly connected with a weight sensor 13, and the upper surface of the weight sensor 13 is fixedly connected with a top plate 12, the lower surface of the push rod 11 is hinged with one end of a support rod 10, and the other end of the support rod 10 is hinged to the equipment rod 9, the bottom inner wall of the main frame 1 is fixedly connected with a controller 14, and the cylinder 2 and the weight sensor 13 are electrically connected to the controller 14.

[0019] It should be noted that, since the equipment in the prior art cannot control the pressure of the ejector rod, it is easy to cause the ejector rod to exert excessive pressure on the parts, causing damage to the parts. Therefore, in order to solve the problem that the equipment in the prior art cannot control the pressure of the ejector rod, it is easy to cause the ejector rod to exert excessive pressure on the parts, causing damage to the parts, the present solution can control the start and stop of the cylinder 2 and the weight sensor 13 through the controller 14, and through the extension of the telescopic end of the cylinder 2, the upper mold 3 is lowered to stamp the material in the lower mold base 6. After the stamping is completed, the two connecting rods 7 are contracted by the contraction of the telescopic end of the cylinder 2. The outer walls of the upper mold 3 are brought closer together, so that the slider 8 drives the equipment rod 9 to move toward the center of the equipment frame 5. The two equipment rods 9 approach each other, which can push the push rod 11 and the top plate 12 to move upward. The upward movement of the top plate 12 can lift the stamped parts, and the pressure of the top plate 12 on the parts is detected by the weight sensor 13. When the weight sensor 13 detects that the pressure exceeds the set value, the weight sensor 13 sends a signal to the controller 14, and the controller 14 controls the cylinder 2 to stop working, thereby preventing the telescopic end of the cylinder 2 from continuing to shrink and preventing the top plate 12 from continuing to rise and causing damage to the parts.

[0020] In a further preferred embodiment of the present invention, Figure 1 As shown, a roller 17 is fixedly connected to the lower surface of the main frame 1.

[0021] In this embodiment, the roller 17 facilitates the movement of the device.

[0022] In a further preferred embodiment of the present invention, Figure 1 As shown, a guide rod 4 is fixedly connected to the upper surface of the upper mold 3, and the guide rod 4 is slidably connected to the main frame 1.

[0023] In this embodiment, the guide rod 4 ensures the stability of the upper mold 3 during movement.

[0024] In a further preferred embodiment of the present invention, Figure 3 As shown, a plastic pad 15 is fixedly connected to the lower surface of the top plate 12 .

[0025] In this embodiment, the plastic pad 15 improves the flexibility of the lower surface of the top plate 12 .

[0026] In a further preferred embodiment of the present invention, Figure 1 As shown, a limiting plate 16 is fixedly connected to the inner wall of the equipment frame 5 .

[0027] In this embodiment, the movement of the equipment rod 9 is restricted by the limiting plate 16 .

[0028] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0029] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0030] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. The stamping die ejection mechanism is characterized by: The invention comprises a main frame (1), the upper surface of the main frame (1) is fixedly connected to a cylinder (2), and the outer wall of the telescopic end of the cylinder (2) is fixedly connected to an upper mold (3), the lower inner wall of the main frame (1) is fixedly connected to an equipment frame (5), and the upper surface of the equipment frame (5) is fixedly connected to a lower mold base (6), the outer wall of the upper mold (3) is hinged to one end of a connecting rod (7), and the lower inner wall of the main frame (1) is slidably connected to a slider (8), the slider (8) is hinged to the other end of the connecting rod (7), and the outer wall of the slider (8) is fixedly connected to an equipment rod (9), and the equipment rod (9 ) is slidably connected to the main frame (1), and the inner wall of the bottom end of the lower mold base (6) is slidably connected to a push rod (11), the upper surface of the push rod (11) is fixedly connected to a weight sensor (13), and the upper surface of the weight sensor (13) is fixedly connected to a top plate (12), the lower surface of the push rod (11) is hinged to one end of a support rod (10), and the other end of the support rod (10) is hinged to the equipment rod (9), the inner wall of the bottom end of the main frame (1) is fixedly connected to a controller (14), and the cylinder (2) and the weight sensor (13) and the controller (14) are electrically connected.

2. The punch die ejection mechanism according to claim 1, characterized in that: A roller (17) is fixedly connected to the lower surface of the main frame (1).

3. The punch die ejection mechanism according to claim 1, characterized in that: The upper surface of the upper mold (3) is fixedly connected to a guide rod (4), and the guide rod (4) is slidably connected to the main frame (1).

4. The punch die ejection mechanism according to claim 3, characterized in that: A plastic pad (15) is fixedly connected to the lower surface of the top plate (12).

5. The punch die ejection mechanism according to claim 1, characterized in that: The inner wall of the equipment frame (5) is fixedly connected to a limiting plate (16).

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