Product side wall inverted buckle secondary ejection mechanism applied to injection mold

Abstract

A product side wall inverted buckle secondary ejection mechanism applied to an injection mold comprises a needle plate, a return needle is arranged on the needle plate, a base plate and a push plate are sequentially arranged on the return needle in a sleeving mode from bottom to top, an injection molding groove is formed in the top side of the base plate, an injection molding cavity penetrating through the top and the bottom is formed in the push plate, and the injection molding cavity and the injection molding groove are arranged in an up-and-down corresponding mode. A plurality of groups of pitched roof guide grooves are formed in the push plate and are in one-to-one correspondence with the plurality of groups of hole-shaped structures, a plurality of groups of rod-shaped structures are arranged on the needle plate, pitched roofs are arranged in the pitched roof guide grooves, and the plurality of groups of rod-shaped structures are inserted into the plurality of groups of hole-shaped structures in a one-to-one correspondence manner and are connected with the plurality of groups of pitched roofs; a buckling machine ejector rod is arranged on the outer side of the needle plate, a buckling machine movable block is arranged on the outer side of the push plate, and the buckling machine movable block and the buckling machine ejector rod are arranged in an up-down corresponding mode. The demolding structure provided by the scheme is simple, the demolding steps are simplified, the injection molding efficiency is improved, and the demolding structure is suitable for popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, especially in the product side wall reverse buckle secondary ejection mechanism for injection mold is applied. BACKGROUND

[0002] Injection molding machine is commonly used for processing mould, and the inclined ejection assembly is widely used in the field of plastic mould. After the existing mould injection is completed, the mould needs to be opened. When the mould is opened, the target product needs to be ejected from the mould. However, due to the limitation of the shape of the product, there may be some areas in the mould that are not consistent with the opening direction. This interference area is called reverse buckle. The inclined ejection assembly is usually suitable for small reverse buckle structures with small size on the inner side of the product. After the upper movable mould and the lower fixed mould are opened, the inclined ejection assembly slides horizontally under the action of the longitudinal movement of the needle plate to avoid the reverse buckle structure inside the product and successfully implement the demoulding. At present, the product demoulding is mainly realized by distributed demoulding, that is, the inclined ejection assembly is controlled to eject first, and then the push plate is controlled to eject to realize demoulding. Or, the push plate is controlled to eject first, and then the inclined ejection assembly is controlled to eject. This method increases the stroke and has a complex structure, which is low in efficiency.

[0003] Therefore, in view of the deficiencies of the prior art, it is necessary to design a product side wall reverse buckle secondary ejection mechanism applied in an injection mold to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a product side wall reverse buckle secondary ejection mechanism applied in an injection mold.

[0005] In order to achieve the above-mentioned purposes and other related purposes, the technical scheme provided by the utility model is as follows: a product side wall reverse buckle secondary ejection mechanism applied in an injection mold, comprising a needle plate, a return needle is arranged on the needle plate, a cushion plate and a push plate are sequentially arranged on the return needle from bottom to top, an injection slot is arranged on the top side of the cushion plate, an injection cavity is arranged in the push plate and extends upward and downward, the injection cavity is arranged in the injection slot in a one-to-one correspondence, a plurality of hole-shaped structures are arranged in the cushion plate and extend upward and downward, a plurality of inclined ejection guide grooves are arranged in the push plate, the plurality of inclined ejection guide grooves are arranged in a one-to-one correspondence with the plurality of hole-shaped structures, a plurality of rod-shaped structures are arranged on the needle plate, an inclined ejection assembly is arranged in the inclined ejection guide groove, and the plurality of rod-shaped structures are inserted into the plurality of hole-shaped structures in a one-to-one correspondence and connected with the plurality of inclined ejection assemblies; a clamping machine top rod is arranged on the outside of the needle plate, a clamping machine movable block is arranged on the outside of the push plate, and the clamping machine movable block is arranged in a one-to-one correspondence with the clamping machine top rod.

[0006] The preferred technical scheme is that a clamping machine wedge block is arranged on the outside of the cushion plate, a guide groove one and a guide groove two are formed on the inside of the clamping machine wedge block and are in communication with each other, the guide groove one is arranged in a corresponding matching relationship with the clamping machine top rod, and the guide groove two is arranged in a corresponding matching relationship with the clamping machine movable block.

[0007] Preferably, the outer side of the push plate is provided with a mounting groove, the bottom of the mounting groove is provided with a guide groove, the inner side of the buckle machine movable block is provided with a guide rod, the guide rod is inserted into the guide groove, a reset spring is further arranged in the mounting groove and arranged along the axial direction of the guide rod, one end of the reset spring is in abutment with the inner side of the buckle machine movable block, and the other end of the reset spring is in abutment with the bottom of the mounting groove.

[0008] Preferably, the bottom side of the needle plate is provided with a forced reset block, and the forced reset block is used for injection molding machine ejector rod locking connection.

[0009] Due to the above technical scheme, the injection molding demolding structure has the beneficial effects that:

[0010] The product side wall reverse buckle secondary ejection mechanism applied to the injection molding die has the advantages that during the movement of the injection molding machine ejector rod, the push plate and the inclined ejector rod move together for a distance, then the inclined ejector rod continues to eject and finally the inclined ejector rod is separated from the reverse buckle, the demolding structure is simple, the demolding step is simplified, the injection molding efficiency is improved, and the product side wall reverse buckle secondary ejection mechanism is suitable for popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 The injection molding demolding structure is shown in the figure.

[0012] Fig. 2 The injection molding demolding structure is shown in the figure. DETAILED DESCRIPTION

[0013] The embodiments of the injection molding demolding structure are described in detail below, and other advantages and effects of the injection molding demolding structure can be easily understood by those skilled in the art according to the content disclosed in the specification.

[0014] Please refer to Figs. 1-2It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0015] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Example:

[0017] like Figs. 1-2 As shown, according to the overall technical concept of this utility model, a product sidewall undercut secondary ejection mechanism for use in injection molds is provided, including a needle plate 1, a return needle 2 on the needle plate 1, a pad plate 3 and a push plate 4 sequentially mounted on the return needle 2 from bottom to top, an injection groove 31 on the top side of the pad plate 3, an injection cavity 41 penetrating vertically in the push plate 4, the injection cavity 41 and the injection groove 31 being vertically and vertically corresponding, a plurality of holes 32 penetrating vertically in the pad plate 3, a plurality of inclined guide grooves 42 in the push plate 4, the plurality of inclined guide grooves 42 being vertically and vertically corresponding to the plurality of holes 32, a plurality of rod-shaped structures 5 on the needle plate 1, inclined tops 6 in the inclined guide grooves 42, the plurality of rod-shaped structures 5 being vertically and vertically inserted into the plurality of holes 32 and connected to the plurality of inclined tops 6; a locking ejector rod 7 is provided on the outer side of the needle plate 1, and a locking movable block 8 is provided on the outer side of the push plate 4, the locking movable block 8 and the locking ejector rod 7 being vertically and vertically corresponding.

[0018] like Figs. 1-2As shown in the utility model of an example of an embodiment, the outer side of the pad plate 3 is provided with a buckle wedge block 9, the inner side of the buckle wedge block 9 is formed with a guide groove one and a guide groove two that are interconnected, the guide groove one is correspondingly matched with the buckle top rod 7, and the guide groove two is correspondingly matched with the buckle movable block 8.

[0019] As Figs. 1-2 As shown in the utility model of an example of an embodiment, the outer side of the pad plate 3 is provided with a buckle wedge block 9, the inner side of the buckle wedge block 9 is formed with a guide groove one and a guide groove two that are interconnected, the guide groove one is correspondingly matched with the buckle top rod 7, and the guide groove two is correspondingly matched with the buckle movable block 8.

[0020] As Figs. 1-2 As shown in the utility model of an example of an embodiment, the bottom side of the needle plate 1 is provided with a forced reset block 11, and the forced reset block 11 is used for injection molding machine top rod locking connection.

[0021] Therefore, the utility model has the following advantages:

[0022] The product side wall reverse buckle secondary ejection mechanism applied to the injection mold provided by the utility model, in the process of driving the needle plate to move, the inclined top of the push plate moves a distance first, then the inclined top continues to top and finally the inclined top is out of the reverse buckle, the demolding structure is simple, the demolding step is simplified, the injection efficiency is improved, and the utility model is suitable for popularization and application.

[0023] The above embodiment is only illustrative of the principle and effect of the utility model, and is not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A product side wall undercut secondary ejection mechanism applied in an injection mold, comprising a needle plate, a needle plate is provided with a needle, the needle is provided with a pad and a push plate from bottom to top, the top side of the pad is provided with an injection slot, the push plate is provided with an injection cavity penetrating from top to bottom, and the injection cavity is arranged in corresponding with the injection slot, characterized in that: The gasket is provided with a plurality of groups of hole-shaped structures penetrating up and down, the push plate is provided with a plurality of groups of inclined top guide grooves, the plurality of groups of inclined top guide grooves are arranged one by one corresponding to the plurality of groups of hole-shaped structures, the needle plate is provided with a plurality of groups of rod-shaped structures, the inclined top guide grooves are provided with inclined tops, and the plurality of groups of rod-shaped structures are inserted one by one into the plurality of groups of hole-shaped structures and connected with the plurality of groups of inclined tops.

2. The product side wall undercut secondary ejection mechanism for use in injection molding as claimed in claim 1, wherein: The outer side of the gasket is provided with a clamping wedge, the inner side of the clamping wedge is formed with a guide groove one and a guide groove two that are in communication with each other, the guide groove one is arranged in corresponding matching relationship with the clamping top rod, and the guide groove two is arranged in corresponding matching relationship with the clamping movable block.

3. The product side wall undercut secondary ejection mechanism for use in injection molding as claimed in claim 1, wherein: The outer side of the push plate is provided with a mounting groove, the bottom of the mounting groove is provided with a guide groove, the inner side of the clamping movable block is provided with a guide rod, the guide rod is inserted into the guide groove, the mounting groove is further provided with a reset spring arranged in the axial direction of the guide rod, one end of the reset spring is in abutment with the inner side of the clamping movable block, and the other end of the reset spring is in abutment with the bottom of the mounting groove.

4. The product side wall undercut secondary ejection mechanism for use in injection molding molds of claim 1, wherein: The bottom side of the needle plate is provided with a forced reset block, and the forced reset block is used for injection molding machine top rod locking connection.

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