Stamping die convenient to demould

Abstract

The utility model discloses a stamping die convenient to demould, and relates to the technical field of stamping dies, the stamping die convenient to demould comprises a female die and a male die which are oppositely arranged up and down, a first ejection mechanism is installed at the bottom of the female die in a penetrating mode, and second ejection mechanisms are installed on the two sides of the upper surface of the male die in a penetrating mode. The first ejection mechanism is matched with the second ejection mechanism, so that workpieces can be prevented from being clamped inside the female die or outside the male die respectively, the demolding efficiency is improved, blanking is facilitated, and through the buffer mechanism, the workpieces can be prevented from being clamped inside the female die or outside the male die. When the male die descends and makes contact with the workpiece or the female die, the spring buffers can contract at the moment, and therefore buffering protection can be conducted on the female die and the male die, rigid contact is avoided, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die that is easy to demold. Background Technology

[0002] A stamping die is a special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). It is called a cold stamping die (commonly known as a cold stamping mold). Stamping is a pressure processing method that uses a die mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts. A search reveals that Chinese patent publication number CN214442414U discloses a stamping die and stamping device. This stamping die includes: a first die with a first forming surface; a second die with a second forming surface opposite to the first forming surface of the first die; a slot on the second forming surface of the second die; and a punch that is retractably disposed within the first die and can partially extend outside the first die by passing through the first forming surface of the first die during extension, so that it can enter the slot when the first and second dies are closed.

[0003] The above-mentioned technical solution, through the set control components, can drive the punch to extend and retract within the first mold and select whether it stays after extending or retracting, giving the stamping die and stamping device the advantage of wide applicability. However, during use, after the workpiece is stamped by the first and second molds, it may become stuck inside the first mold or outside the second mold. The above-mentioned technical solution cannot demold the workpiece in this situation and requires the use of external tools, which increases the workload and operating cost. Furthermore, it cannot buffer the upper and lower molds during stamping, which can easily lead to rigid contact and damage. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a stamping die that facilitates demolding, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a stamping die that is easy to demold, comprising a die and a punch arranged opposite each other, wherein a first ejection mechanism is installed through the bottom of the die, and a second ejection mechanism is installed through both sides of the upper surface of the punch, and a buffer mechanism is fixedly installed on the top of the punch, and a mounting plate is fixedly connected to the top of the buffer mechanism;

[0006] The first ejection mechanism includes two first ejection rods that are symmetrically slidably connected through the lower surface of the die. A first horizontal plate is fixedly connected between the bottom ends of the two first ejection rods, and a first ejection spring is fixedly connected between the top of the first horizontal plate and the lower surface of the die.

[0007] Preferably, the second ejection mechanism includes two second ejection rods symmetrically and slidably connected to the top of the punch. The top end of the second ejection rod is fixedly connected to a second horizontal plate. A second ejection spring is fixedly connected between the lower surface of the two second horizontal plates and the upper surface of the punch, which can eject the workpiece adhering to the punch after stamping.

[0008] Preferably, a first guide rod is fixedly connected to the lower surface of the end of the second horizontal plate away from the second ejector rod. The first guide rod passes through the punch and is slidably connected to the inside of the punch. Two guide holes that cooperate with the first guide rod are symmetrically opened on the upper surface of the die, which can guide the punch when it moves, so that the punch and die can be stably matched.

[0009] Preferably, the buffer mechanism includes a spring buffer fixedly connected to the center position of the upper surface of the punch. A connecting plate is fixedly connected to the top of the spring buffer. The connecting plate is fixedly connected to the mounting plate by bolts. The mounting plate is driven to move downward by the driving structure in the stamping device. When the punch and the die come into contact, the spring buffer rod can retract, thereby providing buffer protection for the punch and the die.

[0010] Preferably, a plurality of second guide rods are fixedly connected to the upper surface of the punch. The second guide rods pass through the mounting plate and are slidably connected to the mounting plate. The movement of the punch can be guided by the second guide rods to improve stability.

[0011] This invention provides a stamping die that facilitates demolding. It offers the following advantages:

[0012] 1. This stamping die that facilitates demolding, through the setting of a first ejection mechanism and a second ejection mechanism, the first ejection mechanism and the second ejection mechanism can respectively prevent the workpiece from getting stuck inside the die cavity or outside the punch, improve demolding efficiency, and thus facilitate material unloading, thereby solving the problem that existing devices are inconvenient to eject workpieces stuck on the punch.

[0013] 2. This stamping die that is easy to demold has a buffer mechanism. When the punch descends and contacts the workpiece or the die, the spring buffer will retract, thereby buffering and protecting the die and the punch, avoiding rigid contact, and improving service life. This solves the problem that the existing device has a simple structure and cannot provide buffer protection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the stamping die of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first ejection mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the second ejection mechanism and the buffer mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the punch structure from another angle.

[0018] In the figure, 1 is the die cavity; 2 is the punch; 3 is the first ejector mechanism; 31 is the first ejector rod; 32 is the first horizontal plate; 33 is the first ejector spring; 4 is the second ejector mechanism; 41 is the second ejector rod; 42 is the second horizontal plate; 43 is the second ejector spring; 44 is the first guide rod; 45 is the guide hole; 5 is the buffer mechanism; 51 is the spring buffer; 52 is the connecting plate; 53 is the second guide rod; and 6 is the mounting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0020] Example 1:

[0021] like Figure 1 and Figure 2 As shown, a stamping die that is easy to demold includes a die 1 and a punch 2 arranged opposite each other. A first ejection mechanism 3 is installed through the bottom of the die 1. The first ejection mechanism 3 includes two first ejection rods 31 that are symmetrically slidably connected through the bottom surface of the die 1. A first horizontal plate 32 is fixedly connected between the bottom ends of the two first ejection rods 31. A first ejection spring 33 is fixedly connected between the top of the first horizontal plate 32 and the bottom surface of the die 1.

[0022] After stamping is completed, the first ejector spring 33 will drive the first ejector rod 31 to return to its original position, which can eject the workpiece that is inside the die cavity 1.

[0023] Example 2:

[0024] like Figure 1 , Figure 3 and Figure 4As shown, a second ejection mechanism 4 is installed through both sides of the upper surface of the punch 2. The second ejection mechanism 4 includes two second ejection rods 41 symmetrically and slidably connected through the top of the punch 2. A second horizontal plate 42 is fixedly connected to the top of the second ejection rods 41. A second ejection spring 43 is fixedly connected between the lower surface of the two second horizontal plates 42 and the upper surface of the punch 2. A first guide rod 44 is fixedly connected to the lower surface of the second horizontal plate 42 away from the second ejection rods 41. The first guide rod 44 passes through the punch 2 and is slidably connected to the interior of the punch 2. Two guide holes 45 are symmetrically opened on the upper surface of the die 1 to cooperate with the first guide rod 44.

[0025] The second ejection spring 43 will drive the second ejection rod 41 to return to its original position, which can remove the workpiece stuck outside the punch 2. Together with the first ejection mechanism 3, it can prevent the workpiece from getting stuck inside the die 1 or outside the punch 2, improve the demolding efficiency, and facilitate unloading. This solves the problem that the existing device is inconvenient to eject the workpiece stuck on the punch.

[0026] Example 3:

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, a buffer mechanism 5 is fixedly installed on the top of the punch 2. A mounting plate 6 is fixedly connected to the top of the buffer mechanism 5. The buffer mechanism 5 includes a spring buffer 51 fixedly connected to the center position of the upper surface of the punch 2. A connecting plate 52 is fixedly connected to the top of the spring buffer 51. The connecting plate 52 is fixedly connected to the mounting plate 6 by bolts. A plurality of second guide rods 53 are fixedly connected to the upper surface of the punch 2. The second guide rods 53 pass through the mounting plate 6 and are slidably connected to the mounting plate 6.

[0028] When the punch 2 descends and comes into contact with the workpiece or the die 1, the spring buffer 51 will retract to buffer and protect the die 1 and the punch 2, avoid rigid contact, and improve service life. This solves the problem that the existing device has a simple structure and cannot provide buffer protection.

[0029] Working principle: During use, the punch 2 is connected to the drive mechanism of the stamping device. The operation of the drive mechanism can drive the punch 2 to move closer to the die 1, so as to perform stamping operation on the workpiece. After stamping is completed, the first ejection spring 33 will drive the first ejection rod 31 to return to its original position, which can eject the workpiece inside the die 1. The second ejection spring 43 will drive the second ejection rod 41 to return to its original position, which can eject the workpiece stuck outside the punch 2. In conjunction with the first ejection mechanism 3, the workpiece can be prevented from getting stuck inside the die 1 or outside the punch 2, thereby improving the demolding efficiency and facilitating material unloading. This solves the problem that existing devices are inconvenient to eject workpieces stuck on the punch.

[0030] When the punch 2 descends and comes into contact with the workpiece or the die 1, the spring buffer 51 will retract to buffer and protect the die 1 and the punch 2, avoid rigid contact, and improve service life. This solves the problem that the existing device has a simple structure and cannot provide buffer protection.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stamping die that facilitates demolding, comprising a die (1) and a punch (2) arranged opposite each other, characterized in that: The bottom of the concave die (1) is through-mounted with a first ejector mechanism (3), and the upper surfaces of the convex die (2) are through-mounted with a second ejector mechanism (4) on both sides. The top of the convex die (2) is fixedly mounted with a buffer mechanism (5), and the top of the buffer mechanism (5) is fixedly connected with a mounting plate (6). The first ejection mechanism (3) includes two first ejection rods (31) symmetrically slidingly connected through the lower surface of the die (1), a first horizontal plate (32) is fixedly connected between the bottom ends of the two first ejection rods (31), and a first ejection spring (33) is fixedly connected between the top of the first horizontal plate (32) and the lower surface of the die (1).

2. The stamping die for easy demolding according to claim 1, characterized in that: The second ejection mechanism (4) includes two second ejection rods (41) symmetrically and slidably connected to the top of the punch (2). The top end of the second ejection rod (41) is fixedly connected to a second horizontal plate (42). The lower surface of the two second horizontal plates (42) is fixedly connected to the upper surface of the punch (2) and a second ejection spring (43).

3. The stamping die for easy demolding according to claim 2, characterized in that: The lower surface of the second horizontal plate (42) away from the second ejector rod (41) is fixedly connected to a first guide rod (44). The first guide rod (44) passes through the punch (2) and is slidably connected to the inside of the punch (2). The upper surface of the die (1) is symmetrically provided with two guide holes (45) that cooperate with the first guide rod (44).

4. The stamping die for easy demolding according to claim 1, characterized in that: The buffer mechanism (5) includes a spring buffer (51) fixedly connected to the center position of the upper surface of the punch (2). A connecting plate (52) is fixedly connected to the top of the spring buffer (51). The connecting plate (52) is fixedly connected to the mounting plate (6) by bolts.

5. The stamping die for easy demolding according to claim 4, characterized in that: The upper surface of the punch (2) is fixedly connected with a plurality of second guide rods (53), which penetrate the mounting plate (6) and are slidably connected to the mounting plate (6).

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