Large angle ejector mechanism with elastic ejector pin

Abstract

The utility model relates to the technical field of dies, in particular to a large angle ejector mechanism with elastic ejector pins, which comprises an ejection component, the ejection component is mounted at one end of a die, an angle ejector main body is mounted on the outer side of the ejection component, the ejection component comprises two ejector pins, one end of each ejector pin is connected with the angle ejector main body, and a forming rod is mounted on the angle ejector main body. Two ejector pin holes are formed in the surface of the pitched roof body, an inserting end is arranged at one end of the ejector pin, the inserting end is matched with the ejector pin holes in an inserting mode, a protruding ring is installed at the position, close to the outer side of the pitched roof body, of the ejector pin, and a return spring is installed on the outer side of the protruding ring. In the large inclined ejection mechanism with the elastic ejector pin, the ejector pin assembly can quickly and powerfully push a product to be demoulded under the action of the return spring, so that the demoulding efficiency is remarkably improved. And as the demolding process is smoother, the situation that the product is damaged due to difficult demolding is reduced, and the reject ratio of the product is reduced. The mechanism is particularly suitable for production of plastic products with deep rib position structures, and the applicability and flexibility of the mold are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and more specifically, to a large inclined ejector mechanism with a spring ejector pin. Background Technique

[0002] In the field of injection mold technology, especially when producing plastic products with deep rib structures, the problem of difficult demolding is often faced.

[0003] Due to their complex geometric shapes and large clamping forces, deep rib products are prone to sticking to the inclined ejectors of the mold during the demolding process, resulting in product damage, low production efficiency, and increased defect rates. Traditional demolding methods often rely on the rigid structure of the mold itself and simple ejection mechanisms, making it difficult to effectively handle the complex situations during the demolding of deep rib products. Content of the Utility Model

[0004] The purpose of the utility model is to provide a large inclined ejector mechanism with a spring ejector pin to solve the problem that traditional demolding methods often rely on the rigid structure of the mold itself and simple ejection mechanisms, making it difficult to effectively handle the complex situations during the demolding of deep rib products as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides a large inclined ejector mechanism with a spring ejector pin, including an ejection assembly. The ejection assembly is installed at one end of the mold. An inclined ejector main body is installed outside the ejection assembly. The ejection assembly includes two ejector pins. One end of the ejector pin is connected to the inclined ejector main body. A forming rod is installed on the inclined ejector main body. Two ejector pin holes are arranged on the surface of the inclined ejector main body. One end of the ejector pin is provided with a plug-in end, and the plug-in end is in plug-in fit with the ejector pin hole. A convex ring is installed at the position of the ejector pin close to the outside of the inclined ejector main body, and a return spring is installed outside the convex ring.

[0006] Preferably, two bolt holes are arranged on the surface of the inclined ejector main body, and the inclined ejector main body is installed on the mold through two fixing bolts.

[0007] Preferably, the return spring is sleeved on the ejector pin, with one end abutted against the convex ring and the other end abutted against the inside of the mold.

[0008] Preferably, a positioning chamfer is arranged at the corner of the inclined ejector main body.

[0009] Preferably, an inclined surface is arranged on the outside of the inclined ejector main body.

[0010] Preferably, the forming rod has a structure with cylindrical bodies at both ends, and the diameter of the end far from the inclined ejector main body is smaller than the diameter of the end close to the inclined ejector main body.

[0011] Preferably, the outer diameter of the convex ring is larger than the diameter of the ejector pin hole.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the large inclined ejector mechanism with a spring-loaded ejector pin, under the action of the return spring, the ejector pin assembly can quickly and powerfully push the product out of the mold, significantly improving the demolding efficiency. Since the demolding process is smoother, the situation of product damage due to difficult demolding is reduced, thereby reducing the defective rate of the product. This mechanism is particularly suitable for the production of plastic products with deep rib structures, enhancing the applicability and flexibility of the mold. Compared with the traditional demolding method, this mechanism has a simpler structure and more convenient operation, reducing the labor intensity of workers. Since the production efficiency and product qualification rate are improved, and the demolding operation is simplified, it helps to reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the ejection assembly in the present utility model;

[0016] Figure 3 is a schematic diagram of the structure of the inclined ejector body in the present utility model;

[0017] Figure 4 is a schematic diagram of the structure of the ejector pin in the present utility model.

[0018] The meanings of the various reference numerals in the drawings are as follows:

[0019] 1. Mold; 2. Ejection assembly; 21. Fixed bolt; 22. Ejector pin; 221. Convex ring; 222. Insertion end; 223. Return spring; 23. Forming rod; 3. Inclined ejector body; 31. Ejector pin hole; 32. Bolt hole; 33. Inclined surface; 34. Positioning chamfer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model provides a large inclined ejector mechanism with a spring-loaded ejector pin, as Figures 1-4As shown in the figure, it includes an ejection assembly 2. The ejection assembly 2 is installed at one end of the mold 1. An inclined ejector body 3 is installed outside the ejection assembly 2. The ejection assembly 2 includes two ejector pins 22. One end of the ejector pin 22 is connected to the inclined ejector body 3. A forming rod 23 is installed on the inclined ejector body 3. Two ejector pin holes 31 are provided on the surface of the inclined ejector body 3. One end of the ejector pin 22 is provided with a plug-in end 222. The plug-in end 222 is in plug-in fit with the ejector pin hole 31. A convex ring 221 is installed at the position of the ejector pin 22 close to the outside of the inclined ejector body 3. A return spring 223 is installed outside the convex ring 221. The inclined ejector body 3 is the main part of the mechanism, designed to have a shape and size suitable for the mold structure, and is used to form the deep rib position of the product during the injection molding process. The ejector pin 22 is installed at the front end of the inclined ejector body 3 and is in direct contact with the deep rib position of the molded product. The function of the ejector pin 22 is to push the product during demolding and help the product smoothly eject from the inclined ejector. During the injection molding process, the spring is compressed and stores energy. During demolding, the compression force of the spring is released, pushing the ejector pin 22 forward to increase the demolding driving force.

[0022] Forming rod: The forming rod is connected to the ejector pin and is used to form a specific shape of the product during the injection molding process. During the demolding process, the forming rod moves together with the ejector pin to ensure that the product can be smoothly ejected.

[0023] Fixing device: It is used to fix the inclined ejector mechanism on the mold to ensure the stability and accuracy of the mechanism during the injection molding and demolding processes.

[0024] In this embodiment, two bolt holes 32 are provided on the surface of the inclined ejector body 3. The inclined ejector body 3 is installed on the mold 1 through two fixing bolts 21.

[0025] Specifically, the return spring 223 is sleeved on the ejector pin 22, with one end abutted against the convex ring 221 and the other end abutted against the inner side of the mold 1.

[0026] Furthermore, a positioning chamfer 34 is provided at the corner of the inclined ejector body 3 to facilitate the positioning of the inclined ejector body 3.

[0027] Furthermore, an inclined surface 33 is provided on the outside of the inclined ejector body 3.

[0028] Furthermore, the forming rod 23 has a structure with cylindrical bodies at both ends, and the diameter of the end far from the inclined ejector body 3 is smaller than the diameter of the end close to the inclined ejector body 3.

[0029] Furthermore, the outer diameter of the convex ring 221 is larger than the diameter of the ejector pin hole 31, which is convenient for abutting and limiting one end of the return spring 223.

[0030] When the large inclined ejector mechanism with elastic ejector pins of the present utility model is in use, first, it is installed and fixed: The inclined ejector main body 3 is installed on the mold 1 through two fixing bolts 21 to ensure the stability and accuracy of the mechanism during the injection molding and demolding processes. Two bolt holes 32 are provided on the surface of the inclined ejector main body 3 for connection with the mold 1.

[0031] During the injection molding process, the inclined ejector main body 3 and the forming rod 23 jointly form the deep rib position and specific shape of the product. The ejector pin 22 is installed at the front end of the inclined ejector main body 3 and is in direct contact with the deep rib position of the molded product, but does not move at this stage. The return spring 223 is compressed during the injection molding process to store energy.

[0032] Demolding process: After the injection molding is completed, the mold is opened, and the demolding process begins. The return spring 223 that stores energy releases the compression force and pushes the ejector pin 22 to move forward. The ejector pin 22 pushes the product to help the product smoothly come out of the inclined ejector main body 3. The forming rod 23 moves together with the ejector pin 22 to ensure that the product can be completely ejected.

[0033] Return and preparation for the next cycle: After the product is completely ejected, the return spring 223 pulls the ejector pin 22 back to its original position to prepare for the next injection molding cycle. The inclined ejector main body 3 and the forming rod 23 remain on the mold 1 and wait for the start of the next injection molding process.

[0034] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large angled lifter mechanism with a spring-loaded ejector pin, comprising an ejection assembly (2), characterized in that: The ejecting assembly (2) is installed at one end of the mold (1). An inclined ejector body (3) is installed outside the ejecting assembly (2). The ejecting assembly (2) includes two ejector pins (22). One end of the ejector pin (22) is connected to the inclined ejector body (3). A forming rod (23) is installed on the inclined ejector body (3). Two ejector pin holes (31) are provided on the surface of the inclined ejector body (3). One end of the ejector pin (22) is provided with a plug-in end (222). The plug-in end (222) is in plug-in fit with the ejector pin hole (31). A convex ring (221) is installed at the outer side of the ejector pin (22) near the inclined ejector body (3). A return spring (223) is installed on the outer side of the convex ring (221).

2. The large angled lifter mechanism with a spring-loaded ejector pin according to claim 1, characterized in that: Two bolt holes (32) are provided on the surface of the inclined ejector body (3). The inclined ejector body (3) is installed on the mold (1) through two fixing bolts (21).

3. The large inclined ejector mechanism with a spring-loaded ejector pin according to claim 1, characterized in that: The return spring (223) is sleeved on the ejector pin (22). One end abuts against the convex ring (221), and the other end abuts against the inner side of the mold (1).

4. The large inclined ejector mechanism with a spring-loaded ejector pin according to claim 1, characterized in that: A positioning chamfer (34) is provided at the corner of the inclined ejector body (3).

5. The large angled lifter mechanism with a spring ejector pin according to claim 1, wherein: An inclined surface (33) is provided on the outer side of the inclined ejector body (3).

6. The large angled lifter mechanism with a spring-loaded ejector pin according to claim 1, wherein: The forming rod (23) has a structure with cylindrical bodies at both ends. The diameter of the end away from the inclined ejector body (3) is smaller than the diameter of the end close to the inclined ejector body (3).

7. The large angled lifter mechanism with a spring-loaded ejector pin according to claim 1, characterized in that: The outer diameter of the convex ring (221) is larger than the diameter of the ejector pin hole (31).

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