CN206855929U - The cavity jacking mechanism of injection mold - Google Patents

Abstract

The ejection mechanism of the fixed mold of the injection mold includes a fixed plate fixedly connected with the fixed mold. One end of the fixed plate is rotatably connected to the ejection hook. One end of the ejection hook is formed with a first boss, and the other end of the ejection hook is formed with a second boss Two bosses; also includes a first protection plate, the first protection plate is fixed on the stripper plate through the first bolt, and there is a first gap between the first protection plate and the stripper plate, the first bolt is sleeved with the first A bolt protection sleeve, the first bolt protection sleeve is located in the first gap; it also includes a second protection plate, the second protection plate is fixed on the movable mold by second bolts, and there is a second protection plate between the second protection plate and the movable mold. gap, the second bolt is covered with a second bolt protective sleeve, and the second bolt protective sleeve is located in the second gap; during the mold opening process, the second boss contacts the second bolt protective sleeve, and the first boss contacts the first The bolt protector contacts. The utility model has the advantages that the mold opening distance is not limited, and the plastic parts fall off automatically during the mold opening process, thereby improving work efficiency.

Description

Fixed mold ejection mechanism of injection mold

technical field

The utility model relates to a fixed mold ejection mechanism of an injection mold, which belongs to the technical field of molds.

Background technique

The existing injection molds on the market cannot be opened for a long distance, and must be opened within a limited distance. Due to the limitation of the mold opening distance, the ejection height is not enough, which often causes the product not to be automatically demolded, especially the product with a large height. At the same time, because some products have special structural requirements, they need to be ejected from the injection molding machine. This kind of mold usually uses an oil cylinder to achieve ejection, but the oil cylinder has low working efficiency and is accompanied by oil pressure pollution. For injection molds with high requirements can not be used.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a fixed mold ejection mechanism for the existing injection mold, so that the mold is not limited by the fixed mold opening distance when the mold is opened, and the mold can be opened during the mold opening process. The molded products can be automatically demolded.

The technical scheme that the utility model adopts for realizing purpose is:

The ejection mechanism of the fixed mold of the injection mold includes a fixed plate fixedly connected with the fixed mold, one end of the fixed plate is rotatably connected to the ejection hook, and one end of the ejection hook is formed with a first boss, and the ejection hook The other end is formed with a second boss; it also includes a first protective plate, the first protective plate is fixed on the stripper plate by first bolts, and there is a gap between the first protective plate and the stripper plate The first gap, the first bolt is covered with a first bolt protection sleeve, and the first bolt protection sleeve is located in the first gap; a second protection plate is also included, and the second protection plate passes through the second The bolts are fixed on the movable mold, and there is a second gap between the second protective plate and the movable mold, and the second bolt is covered with a second bolt protective sleeve, and the second bolt protective sleeve is located on the In the second gap; during the mold opening process, the second boss is in contact with the second bolt protection sleeve, and the first boss is in contact with the first bolt protection sleeve.

As a further optimization of the above technical solution, both sides of the second boss are made with slopes, so that the second boss is approximately trapezoidal.

Compared with the prior art, the utility model has the following advantages: 1. The utility model adopts a wall-mounted peripheral design, which does not occupy the inner space of the mold; 2. The mold can be opened indefinitely, and the mold opening distance is not limited; 3. During the process of mold opening, the plastic parts fall off automatically, which improves work efficiency; 4. It is suitable for many different types of molds.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a partial exploded view of the utility model.

Fig. 3 is a structural schematic view of the mold opening state of the injection mold using the utility model.

Fig. 4 is a perspective view of the clamping state of the injection mold using the utility model.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

As shown in Figures 1-4, the ejection mechanism of the fixed mold of the injection mold includes a fixed plate 4 fixedly connected with the fixed mold 41, one end of the fixed plate 4 is connected to the ejector hook 3 through a pin shaft 33, and the ejector One end of the hook 3 is shaped on a first boss 31, and the other end of the ejection hook 3 is shaped on a second boss 32, and both sides of the second boss 32 are sloped, so that the second boss The stage 32 has an approximately trapezoidal shape. It also includes a first protection plate 1, the first protection plate 1 is fixed on the stripper plate 11 of the injection mold through the first bolt 12, and there is a second protective plate 1 between the first protection plate 1 and the stripping plate 11. A gap, the first bolt 12 is covered with a first bolt protection sleeve 121, and the first bolt protection sleeve 121 is located in the first gap; it also includes a second protection plate 2, the second protection plate 2 is fixed on the movable mold 21 through the second bolt 13, and there is a second gap between the second protective plate 2 and the movable mold 21, and the second bolt 13 is covered with a second bolt protective sleeve 122 , the second bolt protection sleeve 122 is located in the second gap.

When the injection mold is opened, the movable mold 21 drives the second protective plate 2 and the second bolt 13 to move down and away from the fixed mold 41. During the downward movement of the second bolt 13, the second bolt sheathed outside the second bolt 13 protects The sleeve 122 bears against the second boss 32 to make the ejection hook 3 rotate. During the rotation of the ejector hook 3, the first boss 31 presses the first bolt protective sleeve 121 so that the first protective plate 1 and the stripper plate 11 move down together, and the stripper plate 11 moves down so that the plastic part 5 is separated from the shape of the mold. Cavity, successful demoulding.

This ejection mechanism is fixed on the injection mold by bolts, and adopts a wall-mounted peripheral design, which does not occupy the internal space of the mold; the mold can be opened indefinitely, and the mold opening distance is not limited; during the mold opening process, the plastic parts Automatic shedding, shortening the production cycle and improving work efficiency.

The first bolt 12 is covered with a first bolt protection sleeve 121 to ensure that there is a first gap between the first protection plate 1 and the stripper plate 11, and the second bolt 13 is sleeved with a second bolt protection sleeve 122. There is a second gap between the protective plate 2 and the movable mold 21 . The two sides of the second boss 32 are sloped so as to slide more smoothly on the contact surface with the second bolt protection sleeve 122 .

The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present utility model on the basis of the prior art shall fall within the protection scope of the present utility model.

Claims (1)

1. The fixed mold ejection mechanism of the injection mold is characterized in that: it comprises a fixed plate (4) fixedly connected with the fixed mold (41), and one end of the fixed plate (4) is rotatably connected to the ejector hook (3), so One end of the ejection hook (3) is formed with a first boss (31), and the other end of the ejection hook (3) is formed with a second boss (32); it also includes a first protection plate (1), The first protection plate (1) is fixed on the stripper plate (11) by first bolts (12), and there is a first A gap, the first bolt (12) is covered with a first bolt protection sleeve (121), and the first bolt protection sleeve (121) is located in the first gap; a second protection plate (2) is also included , the second protective plate (2) is fixed on the movable mold (21) by second bolts (13), and there is a second gap between the second protective plate (2) and the movable mold (21) , the second bolt (13) is covered with a second bolt protection sleeve (122), and the second bolt protection sleeve (122) is located in the second gap; during the mold opening process, the second protrusion The platform (32) is in contact with the second bolt protection sleeve (122), and the first boss (31) is in contact with the first bolt protection sleeve (121).