Stamping die delayed discharging device

Abstract

The utility model discloses a stamping die delayed discharging device which comprises a press plate, a plurality of air cylinders are symmetrically arranged on the press plate, equal-height connecting lead screws are arranged at the upper ends of the air cylinders, fixing nuts are arranged on the equal-height connecting lead screws and used for locking the equal-height connecting lead screws, the upper ends of the equal-height connecting lead screws are connected with a discharging mechanism, and the lower ends of the equal-height connecting lead screws are connected with the discharging mechanism. The air cylinders are connected through connecting air pipes, the connecting air pipes are connected with an air storage tank, and opening and closing of an air channel are controlled by an electromagnetic valve. The discharging device is high in automation degree, the air cylinder is adopted as a power source for ejection of the discharging plate, when a mechanical arm takes a workpiece, waste is located below the workpiece, the problem that the waste and the product rub, adhere and run is thoroughly solved, and machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping unloading technology, and in particular to a stamping die delayed unloading device. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts.

[0003] Existing stamping die unloading devices are divided into two types: rigid unloading devices and elastic unloading devices. Currently, most devices use elastic unloading devices. After the stamping process is completed, the product needs to be removed. Currently, product removal is mainly done manually or by robotic arms. Manual removal increases labor intensity, while robotic arms have complex structures and high operating and maintenance costs. Furthermore, in actual use, there is a tendency for scrap materials and products to rub against and stick together, which seriously affects processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems and provide a delayed unloading device for stamping dies.

[0005] To achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is: a stamping die delayed unloading device, including a press plate, a plurality of cylinders symmetrically arranged on the press plate, an equal-height connecting screw at the upper end of each cylinder, a fixing nut on the equal-height connecting screw for locking the equal-height connecting screw, the upper end of the equal-height connecting screw being connected to an unloading mechanism, each cylinder being connected to each other via a connecting air pipe, the connecting air pipe being connected to an air storage tank, the air circuit being switched by a solenoid valve, and a silencer being provided on each cylinder.

[0006] Preferably, the unloading mechanism includes an unloading plate, which slides and is perpendicular to the guide post.

[0007] Preferably, the press plate is symmetrically provided with feet to provide working space and installation space for the cylinder.

[0008] Preferably, the number of cylinders is at least four.

[0009] Preferably, the connecting air pipe includes a main pipe and branch pipes. The main pipe is connected to the air storage tank, and the branch pipes are connected to the cylinders. The air supply between each branch pipe adopts an equidistant parallel air path.

[0010] Compared with the traditional structure, the beneficial effects of this utility model are:

[0011] 1. This utility model uses a cylinder as the power source for ejecting the unloading plate. When the robot arm picks up the part, the waste material is located below the workpiece, which completely solves the problem of waste material and product friction, adhesion and running, and improves processing efficiency. The cylinder air supply adopts an equidistant parallel air path, which solves the problem of the time difference when the cylinder is ejected into place.

[0012] 2. This utility model has a high degree of automation and is easy to modify. It can be connected to existing PLCs or industrial control devices for control, and the unloading time can be freely controlled through the program. Attached Figure Description

[0013] Figure 1 This is the main view of the mold opening of this utility model;

[0014] Figure 2 This is a diagram showing the state of the present invention after stamping without resetting.

[0015] Figure 3 This is a diagram showing the state of the present invention after stamping and resetting.

[0016] In the diagram: 1. Unloading plate, 2. Guide post, 3. Equal height connecting screw, 4. Movable cylinder, 5. Connecting air pipe, 6. Solenoid valve, 7. Air tank, 8. Silencer, 9. Punch, 10. Press plate, 11. Fixing nut, 12. Workpiece, 13. Scrap (sheet material), 14. Standing foot. Detailed Implementation

[0017] The present invention will be further described below.

[0018] See attached document Figure 1 A delayed unloading device for stamping dies includes a press plate 10, on which a plurality of cylinders 4 are symmetrically arranged. Each cylinder 4 has a connecting screw 3 at its upper end, and a fixing nut 11 is provided on the connecting screw 3 for locking the connecting screw 3. The upper end of the connecting screw 3 is connected to the unloading mechanism to transmit the power provided by the cylinders 4. Each cylinder 4 is connected to each other through a connecting air pipe 5. The connecting air pipe 4 is connected to an air storage tank 7, and the air circuit is controlled by a solenoid valve 6. Each cylinder 4 is equipped with a silencer 8.

[0019] In this preferred embodiment, the unloading mechanism includes an unloading plate 1, which is slidably engaged with the guide post 2 and perpendicular to each other, so that the unloading plate 1 can only move vertically, and the unloading plate 1 is always in a horizontal state with the press plate 10 during the movement.

[0020] In this preferred embodiment, the press plate 1 is symmetrically provided with feet 14 to provide working space and installation space for the cylinder 4.

[0021] In this preferred embodiment, the number of cylinders 4 is at least four.

[0022] In this preferred embodiment, the connecting air pipe 5 includes a main pipe and branch pipes. The main pipe is connected to the air storage tank 7, and the branch pipes are connected to the cylinder 4. The air supply between each branch pipe adopts an equidistant parallel air path.

[0023] In practical implementation, cylinder 4, as the core mechanism of the delayed unloading device, is fixed to the press plate 10 with fasteners. The two ends of the equal-height connecting screw 3 are respectively fixed to cylinder 4 and unloading plate 1. The equal-height connecting screw 3 is equipped with a fixing nut 11. By tightening the fixing nut 11, the equal-height connecting screw 3 can be locked, and the stroke of unloading plate 1 can be freely controlled within a certain range. There are at least, but not limited to, four cylinders 4, which are interconnected via connecting air pipes 5 and supplied with air through a two-position three-way solenoid valve 6 and an air tank 7. This ensures consistent cylinder ejection time and prevents the unloading plate 1 from jamming due to unbalanced force. The opening and closing of the two-position three-way solenoid valve 6 can be controlled by industrial control equipment, including but not limited to a PLC, allowing for free control of the unloading time through a program.

[0024] In the working state, after the workpiece 12 is punched by the punch 9, as follows: Figure 2 As shown, waste material 13 and unloading plate 1 are located at the bottom of workpiece 12. During this process, residual compressed air in cylinder 4 is discharged through silencer 8, and two-position three-way solenoid valve 6 is closed, preventing compressed air in air tank 7 from entering cylinder 4. After punch 9 moves away from workpiece 12, workpiece 12 and waste material 13 are completely separated, and workpiece 12 can be removed by a robot or manually. After the above movement is completed, solenoid valve 6 opens, and compressed air in air tank 7 flows into cylinder 4 through connecting air pipe 5. Cylinder 4 is lifted, and power is transmitted to unloading plate 1 via equal-height connecting screw 3. Unloading plate 1 and waste material 13 move upward to the required feeding height, as shown. Figure 3 As shown, at this time, the scrap 13 can be fed forward manually or by a feeder, and the stamping is completed in one pass.

[0025] The above embodiments of this utility model are merely examples to clearly illustrate this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent technical solutions also fall within the scope of this utility model, and the patent protection scope of this utility model should be defined by each claim.

Claims

1. A delayed unloading device for stamping dies, characterized in that: The press plate (10) is symmetrically equipped with several cylinders (4). The upper end of each cylinder (4) is equipped with a height-equal connecting screw (3). A fixing nut (11) is provided on the height-equal connecting screw (3) for locking the height-equal connecting screw (3). The upper end of the height-equal connecting screw (3) is connected to the unloading mechanism. Each cylinder (4) is connected to the other cylinders through a connecting air pipe (5). The connecting air pipe (5) is connected to the air storage tank (7). The air circuit is controlled by a solenoid valve (6). A silencer (8) is provided on each cylinder (4).

2. The stamping die delayed unloading device according to claim 1, characterized in that: The unloading mechanism includes an unloading plate (1), which slides and is perpendicular to the guide column (2).

3. The stamping die delayed unloading device according to claim 1, characterized in that: The press plate (10) is symmetrically provided with feet (14) to provide working space and installation space for the cylinder (4).

4. The stamping die delayed unloading device according to claim 1, characterized in that: The number of cylinders (4) is at least four.

5. The stamping die delayed unloading device according to claim 1, characterized in that: The connecting air pipe (5) includes a main pipe and branch pipes. The main pipe is connected to the air storage tank (7), and the branch pipes are connected to the cylinder (4). The air supply between each branch pipe adopts an equidistant parallel air path.

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