Stamping lower die structure capable of preventing materials from being stuck

Abstract

The utility model discloses an anti-jamming stamping lower die structure, which relates to the technical field of dies and comprises a lower die holder and a lower die tool bit mounted on the upper portion of the lower die holder, a cavity is arranged inside the lower die holder, an air cylinder is mounted in the cavity, a telescopic end of the air cylinder is connected with an ejector rod, and the top end of the ejector rod is connected with a floating block. And the air cylinder, the ejector rod and the floating block are arranged in the cavity at the same inclination. According to the stamping lower die structure capable of preventing material blocking, by arranging the floating block capable of obliquely floating upwards, a material piece can be automatically ejected out of the lower die knife edge after punching is completed, the material piece is effectively prevented from being blocked in the lower die knife edge, the problem that a clamp is damaged due to the fact that a mechanical arm forcibly lifts the blocked material piece is solved, the production efficiency and the equipment operation stability are remarkably improved, and the production cost is reduced. And the production cost and the equipment maintenance difficulty are reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a stamping die structure for preventing material jamming. Background Technology

[0002] In the blanking process before the transfer die in stamping, a single cut is typically used to separate the sheet from the strip. A robotic arm then grips the sheet and transports it to the next forming process. However, in actual production, a pressing problem exists: the sheet easily gets stuck in the die's cutting edge after punching. When the robotic arm forcibly lifts the sheet stuck in the die's cutting edge for transport, it is not only difficult to operate but also highly prone to damage. This not only affects production efficiency and increases equipment maintenance costs but may also lead to production interruptions due to clamp damage, causing even greater economic losses. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a stamping die structure that prevents material jamming, thus solving the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a stamping die structure for preventing material jamming, including a lower die base and a lower die cutter head installed on the upper part of the lower die base. The lower die base has a cavity inside, and a cylinder is installed in the cavity. The telescopic end of the cylinder is connected to a push rod, and the top end of the push rod is connected to a float. The cylinder, push rod, and float are arranged at the same inclination in the cavity.

[0005] Furthermore, the upper part of the lower mold base is equipped with a guide shaft, a nitrogen spring, and a stroke limit sleeve. The upper parts of the guide shaft, nitrogen spring, and stroke limit sleeve are connected to a floating plate, and guide blocks are symmetrically installed on the edge of the floating plate.

[0006] Furthermore, a pressure sensor is installed on the upper part of the lower mold base.

[0007] Furthermore, a number of positioning posts are installed on the upper part of the lower mold base, and the positioning posts are distributed along the contour of the material sheet.

[0008] Furthermore, robotic arms are symmetrically mounted on the upper part of the lower mold base.

[0009] Furthermore, both sides of the top opening of the cavity are provided with positioning grooves, and a limiting block is fixed inside the positioning groove. Both sides of the float are provided with stepped limiting grooves, and the edge of the limiting block extends into the interior of the stepped limiting groove.

[0010] This invention provides a stamping die structure to prevent material jamming. Compared with the prior art, it has the following advantages:

[0011] This anti-jamming stamping die structure features a tiltable, floating block that automatically ejects the sheet material from the die cutter after punching. This effectively prevents the sheet material from getting stuck in the die cutter, avoiding damage to the clamps caused by the robotic arm forcibly lifting the jammed sheet. It significantly improves production efficiency and equipment stability, while reducing production costs and equipment maintenance difficulty. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the lower mold base in this utility model;

[0014] Figure 3 This is a schematic diagram showing the limiting block located inside the step limiting groove in this utility model;

[0015] Figure 4 This is a schematic diagram of the assembly structure of this utility model;

[0016] Figure 5 This is a cross-sectional view of the assembled version of this utility model.

[0017] In the diagram: 1. Lower mold base; 101. Cavity; 102. Expansion groove; 103. Limiting block; 2. Lower mold cutter head; 3. Cylinder; 4. Ejector rod; 5. Float block; 501. Stepped limiting groove; 6. Guide shaft; 7. Nitrogen spring; 8. Stroke limiting sleeve; 9. Float plate; 10. Pressure sensor; 11. Positioning post; 12. Guide block; 13. Robot arm; 14. Material strip; 15. Material sheet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 This utility model provides a technical solution: a stamping die structure for preventing material jamming, including a lower die base 1 and a lower die cutter head 2 installed on the upper part of the lower die base 1. A cavity 101 is reserved inside the lower die base 1. A cylinder 3 is installed in the cavity 101. The telescopic end of the cylinder 3 is connected to a push rod 4. The top end of the push rod 4 is connected to a float 5. The cylinder 3, push rod 4, and float 5 are all set at the same inclination inside the cavity 101.

[0020] The upper part of the lower mold base 1 is also equipped with a guide shaft 6, a nitrogen spring 7, and a stroke limit sleeve 8. The upper parts of the guide shaft 6, nitrogen spring 7, and stroke limit sleeve 8 are connected to a float plate 9. The edges of the float plate 9 are symmetrically equipped with guide blocks 12. The material strip 14 is located between the guide blocks 12, and the distance between the guide blocks 12 on both sides is adapted to the width of the material strip 14. When the upper and lower molds are closed, the lower mold will press down on the material strip 14, thereby causing the float plate 9 to sink. The float plate 9 acts on the guide shaft 6, nitrogen spring 7, and stroke limit sleeve 8. Similarly, after the mold is opened, the guide shaft 6, nitrogen spring 7, and stroke limit sleeve 8 jointly push the float plate 9 to float up to the initial height. The guide shaft 6, nitrogen spring 7, and stroke limit sleeve 8 all adopt existing technology. The specific structure and principle are well known to those skilled in the art and will not be described in detail here.

[0021] A pressure sensor 10 is also installed on the upper part of the lower mold base 1. The pressure sensor 10 can detect whether there is a material sheet above it. The pressure sensor 10 is connected to an external PLC controller. The PLC controller can control the extension and retraction of the cylinder 3. This is existing known technology and will not be described in detail here.

[0022] Several positioning posts 11 are also installed on the upper part of the lower mold base 1, and the positioning posts 11 are distributed along the outline of the material sheet;

[0023] A robotic arm 13 is symmetrically mounted on the upper part of the lower die base 1. The robotic arm 13 can take away the punched sheet. The robotic arm 13 adopts existing technology. The specific structure and principle are well known to those skilled in the art and will not be described in detail here.

[0024] On both sides of the top opening of the cavity 101, there are expansion grooves 102. Inside the expansion grooves 102, there are limiting blocks 103. On both sides of the float 5, there are stepped limiting grooves 501. The edge of the limiting block 103 extends into the interior of the stepped limiting groove 501. During the process of the float 5 tilting and floating, the mutual cooperation between the limiting block 103 and the stepped limiting groove 501 can constrain the floating height of the float 5.

[0025] During operation, the material strip 14 is positioned above the float plate 9 and between the guide blocks 12. Under the action of the external drive device, the material strip 14 can move a fixed distance to the right. After moving into position, the upper die moves down with the upper die cutter head to punch the material strip 14. During the punching and pressing process, the upper die cutter head cooperates with the lower die cutter head 2 to punch out the material sheet 15. After punching, the material sheet 15 falls onto the lower die base 1 and presses against the pressure sensor 10. After the pressure sensor 10 detects the pressure, it converts it into an electrical signal and transmits it to the PLC controller. The PLC controller controls the cylinder 3 to extend, thereby pushing the push rod 4 and the float 5 to move obliquely upwards synchronously, thereby pushing the float 5 out of the interior of the lower die base 1 and lifting the material sheet 15 obliquely upwards, separating the material sheet 15 from the lower die cutter head 2, thus preventing jamming. Finally, the material sheet 15 is removed by the robot arm 13.

Claims

1. A stamping die structure for preventing material jamming, comprising a lower die base (1) and a lower die cutter head (2) mounted on the upper part of the lower die base (1), characterized in that, The lower mold base (1) has a cavity (101) inside, and a cylinder (3) is installed in the cavity (101). The telescopic end of the cylinder (3) is connected to the push rod (4), and the top end of the push rod (4) is connected to the float (5). The cylinder (3), the push rod (4), and the float (5) are set at the same inclination in the cavity (101).

2. The anti-jamming stamping die structure according to claim 1, characterized in that, The lower mold base (1) is equipped with a guide shaft (6), a nitrogen spring (7), and a stroke limit sleeve (8). The upper parts of the guide shaft (6), nitrogen spring (7), and stroke limit sleeve (8) are connected to a float plate (9). The edges of the float plate (9) are symmetrically equipped with guide blocks (12).

3. The anti-jamming stamping die structure according to claim 1, characterized in that, A pressure sensor (10) is installed on the upper part of the lower mold base (1).

4. The anti-jamming stamping die structure according to claim 1, characterized in that, The lower mold base (1) is equipped with several positioning posts (11) on its upper part, and the positioning posts (11) are distributed along the outline of the material sheet.

5. The anti-jamming stamping die structure according to claim 1, characterized in that, The lower mold base (1) is symmetrically equipped with a robot arm (13) on its upper part.

6. The anti-jamming stamping die structure according to claim 1, characterized in that, The cavity (101) has a top opening on both sides with a mounting groove (102), and a limiting block (103) is fixed inside the mounting groove (102). The float (5) has a step limiting groove (501) on both sides, and the edge of the limiting block (103) extends into the step limiting groove (501).

Images