CN206633351U - A kind of ejector mechanism for mold - Google Patents

Abstract

The utility model relates to the technical field of dies, in particular to an ejection mechanism for a die, which comprises a bottom plate and an ejector pin arranged on the bottom plate, wherein an air inlet channel is arranged in the bottom plate, an air outlet channel is correspondingly arranged inside the ejector pin, and the air inlet channel is connected with the air outlet channel; one end of the thimble is connected with the bottom plate, the side of the other end is provided with at least three air outlet holes, and the three air outlet holes are respectively connected with the air outlet channel through an air outlet pipe. The utility model discloses be equipped with the air flue respectively in the inside of bottom plate and the inside of thimble, after the ejecting product of thimble, fill into gas in toward the air flue, utilize the ejecting principle of pneumatics to make the atmospheric pressure effect act on the product to make the effect that the product received the power break away from the thimble. The utility model discloses a simple structure utilizes the pneumatic ejecting principle to realize that the product breaks away from the thimble automatically, neither can increase substantially the transformation cost of mould, has still improved the efficiency of production, is favorable to the large-scale production of dark chamber product.

Description

A kind of ejector mechanism for mold

technical field

The utility model relates to the technical field of molds, in particular to an ejection mechanism for molds.

Background technique

In mold production, for injection molded deep cavity products, most of the time such products are still connected with ejector pins after ejection. Present most manufacturers can only take out product by manual or manipulator when above-mentioned situation takes place. However, if manual extraction is used, a lot of time will be wasted, which will undoubtedly increase the production cost; and if mechanical arm extraction is used, a removal jig needs to be made, and it will also be affected by the mold opening stroke of the machine, thus Reduce production efficiency. Both of the above two methods cannot balance the contradiction between cost and production efficiency, and therefore are not conducive to mass production of products.

Contents of the invention

The utility model provides an ejection mechanism for a mold aiming at the problems of the prior art, and a blowing structure is provided on the thimble, so that the product can automatically fall off after ejection, thereby saving production cost and improving production efficiency.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

The utility model provides an ejection mechanism for a mold, which includes a base plate and an ejector pin arranged on the base plate, an air inlet channel is arranged inside the base plate, an air outlet channel is correspondingly provided inside the ejector pin, and an air outlet channel is provided inside the ejector pin. The air channel is connected to the air outlet channel; one end of the thimble is connected to the bottom plate, and at least three air outlet holes are arranged on the side of the other end, and the three air outlet holes are respectively connected to the air outlet channel through an air outlet pipe.

Wherein, the air inlet channel is parallel to the upper surface of the bottom plate, and the air outlet channel is parallel to the side of the thimble.

Wherein, the air outlet pipe and the air outlet are at an angle of 58°-62°.

Wherein, at least three air outlet holes are evenly distributed on the same horizontal plane of the side of the thimble.

Wherein, the air outlet is located 4.5-5.5 mm below the other end of the thimble.

Wherein, one end of the thimble is embedded in the bottom plate.

Further, a sealing ring is provided around the joint between the thimble and the bottom plate.

Beneficial effects of the utility model: the utility model has air passages inside the bottom plate and the inside of the thimble respectively. When the thimble pushes out the product, gas is filled into the air passage, and the pneumatic ejection principle is used to make the air pressure act on the product. Up, so that the product is detached from the thimble under the action of force. The utility model realizes that the product is automatically separated from the thimble by using the principle of pneumatic ejection through a simple structure, which will not greatly increase the cost of mold transformation, but also improves the production efficiency, which is beneficial to the large-scale production of deep-cavity products.

Description of drawings

Fig. 1 is the schematic diagram when the utility model is arranged on the mould.

Fig. 2 is an exploded schematic diagram of the utility model.

Fig. 3 is a perspective view of the thimble of the utility model.

Reference signs: 1—bottom plate, 2—thimble, 3—sealing ring, 4—product, 5—rear formwork, 6—lower formwork, 11—intake channel, 21—air outlet channel, 22—air outlet hole, 23—outlet trachea.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model. Below in conjunction with accompanying drawing, the utility model is described in detail.

In this embodiment and the accompanying drawings, the number of air outlet holes is only for those skilled in the art to understand this solution more intuitively and clearly, and is not a limitation to this solution.

As shown in Fig. 1 and Fig. 2, a kind of ejection mechanism for the mold provided by the utility model includes a base plate 1 and a thimble 2 arranged on the base plate 1, and an air inlet 11 is arranged in the base plate 1, The inside of the thimble 2 is correspondingly provided with an air outlet 21, and the air inlet 11 is connected to the air outlet 21; one end of the thimble 2 is connected to the bottom plate 1, and the side of the other end is provided with three air outlets 22. The three air outlet holes 22 are respectively connected to the air outlet channel 21 through an air outlet pipe 23. As shown in the figure, when the utility model needs to be used, the bottom plate 1 is connected to the lower template 6, and the thimble 2 passes through the back template 5 and withstands the product 4. When the thimble 2 pushes out the product 4, it enters from the bottom plate 1 The air channel 11 is filled with gas, the gas passes through the air inlet channel 11, the air outlet pipe 23, the air outlet channel 21 successively, and finally sprays out from the air outlet hole 22 and acts on the product 4, due to the gas pressure caused by the gas on the product 4 It points away from the thimble 2, so the thimble 2 will move away from the thimble 2 after being subjected to the air pressure, so as to automatically break away from the thimble 2. The utility model simply optimizes and transforms the ejection structure, thereby utilizing the pneumatic ejection principle to realize the effect that the product 4 is automatically detached from the thimble 2 after ejection, thereby reducing the steps of taking out the product 4 after ejection. In addition to effectively improving the production efficiency of the product 4, the utility model does not need to invest excessively high costs to modify the mold, and at the same time solves the two problems of production cost and production efficiency in the production of the deep cavity product 4, enabling large-scale production of deep cavity The cost and efficiency of product 4 are guaranteed.

Wherein, as shown in FIG. 2 and FIG. 3 , the air inlet channel 11 is parallel to the upper surface of the bottom plate 1 , and the air outlet channel 21 is parallel to the side of the ejector pin 2 . It can be seen from the figure that the inlet channel 11 and the outlet channel 21 are both straight pipes, which can allow the gas to act on the product 4 after entering the air channel through the shortest distance, thereby effectively reducing the energy loss when the air pressure passes through the air channel , which improves the utilization rate of the air pressure, thereby reducing the time it takes for the product 4 to separate from the ejector pin 2, which is conducive to improving production efficiency.

Wherein, as shown in FIG. 3 , the air outlet pipe 23 and the air outlet channel 21 form an angle of 58°-62°. This data is the best data obtained by the designer after many tests. When the angle between the air outlet pipe 23 and the air outlet 21 is 58°-62°, the gas utilization rate and air pressure are optimal. The product 4 can be separated from the thimble 2 with the least amount of gas and the shortest time. Certainly, as a preference, the effect is the best when the angle between the air outlet pipe 23 and the air outlet channel 21 is 60°.

Wherein, as shown in Fig. 2 and Fig. 3, three air outlet holes 22 are evenly distributed on the same horizontal plane of the side of the thimble 2, so that the product 4 is separated from the thimble 2 by the uniform air pressure, and the product 4 is avoided due to the The uneven air pressure causes the part to continue to be connected to the thimble 2, resulting in deformation.

Wherein, the air outlet hole 22 is located at 4.5-5.5 mm below the other end of the thimble 2 . This position is the best position to ensure that the gas can make the product 4 escape from the thimble 2 and will not affect the shape of the product 4, which is conducive to improving the passing rate of the product 4.

Wherein, as shown in Figure 1, one end of the thimble 2 is embedded in the bottom plate 1, which can ensure that the thimble 2 is perpendicular to the bottom plate 1, so that the thimble 2 can stably and reliably lift the product 4, and avoid tilting due to the thimble 2 And cause product 4 to cause deformation under the pull of gravity.

Further, as shown in FIG. 2 , a sealing ring 3 is formed around the junction of the thimble 2 and the bottom plate 1 . The sealing ring 3 can prevent the gas from leaking out from the connection gap between the inlet pipe and the outlet pipe 23, thereby ensuring the stability of the air pressure in the trachea and the utilization rate of the gas.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above with the preferred embodiment, it is not used to limit the utility model. Anyone who is familiar with the utility model Professional technicians, without departing from the scope of the technical solution of the present utility model, should use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but if they do not depart from the technical solution of the present utility model, the The utility model technology refers to any simple modification, equivalent change and modification made to the above embodiments, which all belong to the scope of the utility model technical solution.

Claims (7)

1. An ejection mechanism for a mould, characterized in that: it comprises a bottom plate and a thimble arranged on the bottom plate, the bottom plate is provided with an air inlet, and the inside of the thimble is correspondingly provided with an air outlet. The air inlet is connected to the air outlet; one end of the thimble is connected to the bottom plate, and at least three air outlets are arranged on the side of the other end, and the three air outlets are respectively connected to the air outlet through an air outlet pipe. 2 . The ejection mechanism for a mold according to claim 1 , wherein the air inlet channel is parallel to the upper surface of the bottom plate, and the air outlet channel is parallel to the side of the ejector pin. 3 . 3 . The ejection mechanism for a mold according to claim 1 , wherein the air outlet pipe forms an angle of 58°-62° with the air outlet channel. 4 . 4 . The ejection mechanism for a mold according to claim 1 , wherein at least three air outlet holes are evenly distributed on the same horizontal plane of the side of the ejector pin. 5 . The ejection mechanism for a mold according to claim 1 , wherein the air outlet is located 4.5-5.5 mm below the other end of the ejector pin. 6. The ejection mechanism for a mold according to claim 1, wherein one end of the ejector pin is embedded in the bottom plate. 7 . The ejection mechanism for a mold according to claim 6 , wherein a sealing ring is provided at the joint between the ejector pin and the bottom plate. 7 .