Mold discharge port anti-inversion structure

Abstract

The utility model provides a mould discharge gate prevents the structure of flying backward, including upper die and lower die, the upper die includes upper die holder and unloading plate, be equipped with first gas cavity in the upper die holder, the lower die includes lower die holder and female die plate, be equipped with the cavity of forming part on the female die plate, be equipped with the elastic ejector of ejecting part after stamping in the cavity of female die plate, the second gas cavity is provided with in the lower die holder, the blowing direction of second gas cavity is to the cavity, the ejecting action of elastic ejector is coordinated with the blowing action of second gas cavity, to blow away the cavity with part acceleration, the utility model greatly shortens the time of part in the air stagnation and the uncertainty of flight trajectory, thereby solves the problem that part flies backward to the mould because of mutual collision under the condition of high -speed stamping completely, effectively puts an end to the die accident, has improved production efficiency and equipment security significantly.

Description

Technical Field

[0001] This utility model relates to a structure for preventing the material from flying back at the mold outlet. Background Technology

[0002] In the stamping production process, parts need to be quickly and reliably discharged from the mold cavity after processing to ensure continuous and automated production. Currently, the most common discharge method in the industry is air-blowing discharge, which involves setting air nozzles or air blocks at appropriate locations in the mold, using compressed air to blow the formed parts away from the mold and allow them to fall into a collection container. This method performs stably at conventional stamping speeds (such as 60-100 times per minute) and can meet production needs. However, with the increasing market demand, higher requirements for production efficiency are being placed, forcing production lines to develop towards higher and ultra-high speeds. When stamping speeds are significantly increased (e.g., exceeding 200 strokes per minute), traditional pure air-blowing ejection methods reveal serious flaws: Since parts rely primarily on airflow and their own weight for propulsion after being blown out, their trajectories in the air are unstable, resulting in prolonged dwell times. At high speeds, the time interval between two blown-out parts is extremely short, increasing the number of parts in the air simultaneously and making collisions highly likely. These collisions cause unpredictable deflections in the parts' direction of motion, with some parts even flying back into the already opened mold cavity. This "part bounce" or "backflying" phenomenon directly leads to serious mold-closing accidents during the next mold closing, damaging expensive precision molds, causing unplanned production line downtime, affecting overall production efficiency, and potentially generating a large amount of scrap—completely contradicting the initial goal of increasing stamping speed to increase production and reduce costs. Therefore, a new ejection structure is urgently needed to effectively solve the bounce problem caused by parts colliding in the air during high-speed stamping, ensuring the stability and safety of ultra-high-speed production. Utility Model Content

[0003] This invention provides a structure to prevent the material from flying back from the mold outlet, which can effectively solve the above problems.

[0004] This utility model is implemented as follows:

[0005] A mold ejection port anti-tipping structure includes an upper mold and a lower mold. The upper mold includes an upper mold base and a stripper plate. The upper mold base has a first air chamber. The lower mold includes a lower mold base and a concave mold plate. The concave mold plate has a cavity for forming a part. An elastic ejector is provided in the cavity of the concave mold plate to eject the part after stamping. The lower mold base has a second air chamber. The air blowing direction of the second air chamber is towards the cavity. The ejection action of the elastic ejector is coordinated with the air blowing action of the second air chamber to accelerate the part away from the cavity.

[0006] The beneficial effects of this utility model are:

[0007] (1) This utility model uses an elastic ejector (such as a spring) to mechanically eject the part instantly after stamping, and coordinates with the directional blowing action of the second air chamber in the lower mold base and the first air chamber in the upper mold base to provide a high-speed, directional boosting force for the part at the moment it leaves the cavity. This greatly shortens the time the part stays in the air and reduces the uncertainty of its flight trajectory, thus completely solving the problem of parts flying back to the mold due to mutual collision under high-speed stamping conditions. This effectively eliminates mold accidents and significantly improves production efficiency and equipment safety. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0010] Figure 2 This is a diagram showing the usage status of the upper and lower molds of this utility model.

[0011] Figure 3 This is a schematic diagram of the closed state of the upper and lower molds of this utility model.

[0012] Explanation of icon numbers:

[0013] 1. Upper mold; 10. Upper mold base; 11. First positioning hole; 12. Upper backing plate; 13. Fixing plate; 14. Stop plate; 15. Stripper plate; 16. First air cavity; 2. Lower mold; 20. Lower mold base; 21. Lower backing plate; 22. Concave mold plate; 23. Second positioning hole; 24. Second air cavity; 3. Ejector. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0015] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0016] Reference Figure 1-3 As shown, a mold discharge port anti-tipping structure includes an upper mold 1 and a lower mold 2. The upper mold 1 includes an upper mold base 10 and a stripper plate 15. The upper mold 1 also includes an upper pad plate 12, a fixing plate 13 and a stop plate 14 arranged sequentially from top to bottom. The lower mold 2 also includes a lower pad plate 21 disposed between the lower mold base 20 and the concave mold plate 22. The upper mold base 10 is provided with a first positioning hole 11, and the lower mold base 20 is provided with a second positioning hole 23 that cooperates with the first positioning hole 11.

[0017] The upper mold base 10 has a first air chamber 16. The lower mold 2 includes a lower mold base 20 and a concave mold plate 22. The concave mold plate 22 has a cavity for forming the part. An elastic ejector 3 is provided in the cavity of the concave mold plate 22 to eject the part after stamping. The lower mold base 20 has a second air chamber 24. The blowing direction of the second air chamber 24 is towards the cavity. The ejection action of the elastic ejector 3 is coordinated with the blowing action of the second air chamber 24 to accelerate the part away from the cavity. The core function of the second air chamber 24 is not to blow air when the part is in free flight, but to immediately provide a parallel or acute-angled booster airflow at the moment the spring pushes the part away from the cavity. The function of this airflow is: a) to eliminate possible vacuum adsorption or friction between the part and the cavity wall; b) to provide a directional acceleration for the ejected part, so that it flies at low altitude, high speed and along a predetermined trajectory to the collection device, greatly shortening the time spent in the air. The blowing direction of the first air chamber 16 is towards the cavity, and its blowing action is synchronized with the blowing action of the second air chamber 24. It works together from the top and bottom to accelerate the removal of the part. At the same time, it forms a combined force with the ejection and blowing action below, further ensuring that the part will not bounce or get stuck, and stabilizing its falling path.

[0018] The elastic ejector 3 is a spring. During stamping, it is compressed and extends into the cavity to participate in the shearing operation. After stamping, it rebounds to eject the part. During stamping, the ejector 3, as a process component, is compressed and extends into the cavity to participate in the shearing operation. After stamping, it instantly rebounds using its inherent elastic restoring force, mechanically and forcibly ejecting the formed part from the cavity. This design avoids adding extra mechanisms and cleverly utilizes the existing spring to complete the most critical "ejection" action, providing a solid foundation for high-speed material discharge.

[0019] The blowing direction of the second air chamber 24 is parallel to or forms an acute angle with the ejection path of the elastic ejector 3, so that the part ejected with the assistance of airflow flies down in a predetermined direction.

[0020] Working principle: After stamping, the upper die returns. At this time, the spring (elastic ejector 3) set in the lower die cavity uses its rebound force to quickly push the part away from the bottom of the cavity. Almost at the same time, the second air chamber 24 in the lower die base 20 generates directional airflow, which acts on the part that has just been lifted, providing it with a booster force parallel to the ejection path, enabling it to obtain a high-speed and directional initial velocity and accelerate away from the working area of ​​the die at low altitude. At the same time, the first air chamber 16 of the upper die blows air downwards, pressing down from above and assisting in material discharge. Together with the ejection and blowing actions below, they form a combined force from top to bottom. This linkage mechanism of "mechanical ejection as the main force and airflow directional boost as the auxiliary force" greatly shortens the dwell time and flight uncertainty of the part near the die, thereby effectively avoiding the risk of multiple parts colliding with each other in the air and flying back to the die at high speed. It fundamentally eliminates die-pressing accidents and ensures the stability and safety of ultra-high-speed production.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mold discharge port anti-tipping structure, characterized in that: The mold includes an upper mold (1) and a lower mold (2). The upper mold (1) includes an upper mold base (10) and a stripper plate (15). The upper mold base (10) is provided with a first air chamber (16). The lower mold (2) includes a lower mold base (20) and a concave mold plate (22). The concave mold plate (22) is provided with a cavity for forming the part. The cavity of the concave mold plate (22) is provided with an elastic ejector (3) that can eject the part after stamping. The lower mold base (20) is provided with a second air chamber (24). The blowing direction of the second air chamber (24) is towards the cavity. The ejection action of the elastic ejector (3) is coordinated with the blowing action of the second air chamber (24) to accelerate the blowing of the part away from the cavity.

2. The anti-tipping structure for the mold discharge port according to claim 1, characterized in that, The elastic ejector (3) is a spring, which is compressed during stamping and extends into the cavity to participate in the shearing operation. After stamping is completed, it rebounds to eject the part.

3. The anti-tipping structure for the mold discharge port according to claim 1, characterized in that, The blowing direction of the second air chamber (24) is parallel to or forms an acute angle with the ejection path of the elastic ejector (3) so that the part ejected with the assistance of airflow flies down in a predetermined direction.

4. The anti-tipping structure for the mold discharge port according to claim 1, characterized in that, The blowing direction of the first air chamber (16) is towards the cavity, and its blowing action is synchronized with the blowing action of the second air chamber (24), working together from both the top and bottom directions to accelerate the removal of the parts.

5. The anti-tipping structure for the mold discharge port according to claim 1, characterized in that, The upper mold (1) also includes an upper pad (12), a fixing plate (13), and a stop plate (14) arranged sequentially from top to bottom.

6. The anti-tipping structure for the mold discharge port according to claim 1, characterized in that, The lower mold (2) also includes a lower pad (21) disposed between the lower mold base (20) and the concave mold plate (22).

7. The anti-tipping structure for the mold discharge port according to claim 1, characterized in that, The upper mold base (10) is provided with a first positioning hole (11), and the lower mold base (20) is provided with a second positioning hole (23) that cooperates with the first positioning hole (11).

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