Rotating shaft type secondary acceleration ejection mold

Abstract

The utility model discloses a rotating shaft type secondary accelerated ejection mold. Relates to die structure improvement. Comprising an ejector pin seat which slides up and down in a reciprocating manner below a forming fixed die through an ejector rod moving up and down at the bottom; a hollow accommodating groove is formed in the ejector pin seat; the rotating block is hinged in the accommodating groove; the ejector pin end of the rotating block is provided with a notch extending downwards from the top surface, and the bottom surface of the opposite end is provided with a rotation quantity inclined surface; the ejector pin I is vertically and slidably arranged in the forming fixing mold, the bottom of the ejector pin I is attached to the bottom face of the notch, and the top of the ejector pin I extends upwards and is used for completely separating the formed shell from the forming fixing mold; the stop pin I is fixedly arranged on the bottom surface of the forming fixed die, the bottom of the stop pin I corresponds to the opposite end of the rotating block, and the stop pin I is used for pushing the rotation measuring inclined surface of the rotating block to rotate downwards; the locking needle II is arranged below the rotation quantity inclined plane; and a counterbore matched with the stop pin II is formed below the accommodating groove of the ejector pin seat. The structure is stable in work, safe and reliable, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an improvement on a mold structure, in particular to a rotating shaft type secondary acceleration ejection mold. Background Art

[0002] Injection molds are widely used in the production of plastic products. They are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. The injection mold consists of two parts: a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. The hot-melt plastic is injected into the cavity through the pouring system and cooled to form the desired product. When opening the mold, the movable mold and the fixed mold are separated to remove the plastic product.

[0003] The existing shell products after injection molding have a small draft angle, and the bottom is covered with holes. During production, the products cannot be completely ejected at one time due to the strong clamping force. Utility Model Content

[0004] In view of the above problems, the utility model provides a rotating shaft type secondary acceleration ejection mold which has stable structure, is safe and reliable, and can smoothly demould shell products.

[0005] The technical solution of the utility model is:

[0006] Rotary shaft type secondary acceleration ejection mold, including:

[0007] The ejector seat reciprocates up and down under the forming fixed mold through an ejector rod that moves up and down at the bottom; the ejector seat is provided with a hollow receiving groove;

[0008] A rotating block is hingedly disposed in the receiving groove; the ejector end of the rotating block is provided with a notch extending downward from the top surface, and the bottom surface of the opposite end is provided with a rotating amount inclined surface;

[0009] The ejector pin I is vertically slidably arranged in the molding fixed mold, with the bottom thereof being in contact with the bottom surface of the notch and the top thereof extending upward, and is used for completely separating the molded shell from the molding fixed mold;

[0010] A stop pin I is fixedly arranged on the bottom surface of the molding fixed mold, and its bottom corresponds to the opposite end of the rotating block, and is used to push the rotating amount inclined surface of the rotating block to rotate downward;

[0011] Specifically, it also includes a stop pin II arranged below the rotation amount inclined plane;

[0012] A countersunk hole adapted to the stop pin II is provided below the receiving groove of the ejector seat.

[0013] Specifically, the stop needle II includes a supporting portion, a limiting portion and an extending portion which are fixedly connected in sequence from top to bottom.

[0014] Specifically, the ejector seat includes:

[0015] The ejector support plate is pushed by the ejector rod to slide reciprocatingly up and down; the countersunk hole is arranged on the ejector support plate;

[0016] The ejector plate is fixedly arranged on the top surface of the ejector supporting plate; and the accommodating groove is arranged on the ejector plate.

[0017] Specifically, a fixed bottom plate is provided below the ejector seat;

[0018] A top stick hole adapted to the top stick is arranged in the middle of the bottom plate.

[0019] Specifically, the notch of the rotating block is in a stepped shape.

[0020] Specifically, the middle portion of the rotating block is hinged in the accommodating groove via a hinge shaft.

[0021] Specifically, a demoulding groove is provided on the top of the molding fixed mold;

[0022] The demoulding groove is provided with a top block adapted thereto; the top block is provided with a plurality of top block core inserts;

[0023] The ejector block is fixedly connected to the ejector seat.

[0024] Specifically, the ejector block and the ejector seat are fixedly connected via an ejector pin II.

[0025] The utility model utilizes a secondary ejection mechanism (including an ejector seat, a rotating block, an ejector pin I and a stop pin I) to solve the problem that the shell product mold cannot be completely ejected at one time and realize efficient and smooth demoulding. The rotating block in this case is restricted by the stop pin I, and the rotating amount inclined surface rotates downward, so that the ejector pin I rises twice, the circular hole on the product is completely separated from the ejector block core, the product leaves the mold cavity, and is demoulded smoothly. This structure in this case works stably, safely and reliably, ensures product quality, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the mold structure after the shell is formed;

[0027] Figure 2 This is a schematic diagram of the structure after the ejector seat rises;

[0028] Figure 3 It is a schematic diagram of the structure after the rotating block is flipped;

[0029] In the figure, 1 is the shell, 2 is the ejector block core insert, 3 is the bottom plate, 4 is the ejector rod hole, 5 is the ejector pin support plate, 6 is the ejector pin plate, 7 is the ejector pin I, 8 is the ejector pin II, 9 is the stop pin I, 10 is the rotating block, 11 is the stop pin II, 12 is the rotating shaft, and 13 is the fixed block. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Reference below Figure 1-3 Describe the embodiments of the utility model;

[0034] Rotary shaft type secondary acceleration ejection mold, including:

[0035] The ejector seat reciprocates up and down under the forming fixed mold through an ejector rod that moves up and down at the bottom; the ejector seat is provided with a hollow receiving groove;

[0036] The rotating block 10 is hingedly disposed in the receiving groove via a hinge shaft 12; the ejector end of the rotating block 10 is provided with a notch extending downward from the top surface, and the bottom surface of the opposite end is provided with a rotation amount inclined surface;

[0037] The ejector pin 17 is vertically slidably disposed in the molding fixed mold, with its bottom being in contact with the bottom surface of the notch and its top extending upward, and is used to completely separate the molded housing 1 from the molding fixed mold;

[0038] The stop pin I9 is ​​fixedly arranged on the bottom surface of the molding fixed mold, and its bottom corresponds to the opposite end of the rotating block 10, and is used to push the rotating amount inclined surface of the rotating block 10 to rotate downward, thereby lifting the ejector pin I7;

[0039] A demoulding groove is provided at the top of the molding fixed mold; a top block 13 adapted thereto is provided in the demoulding groove; and a plurality of top block core inserts 2 are provided on the top block;

[0040] The ejector block 13 is fixedly connected to the ejector seat via the ejector pin II 8 .

[0041] like Figure 1-2 As shown, when the ejector seat is Figure 1 Status raised to Figure 2 In the state, the ejector pin 1 separates the top of the molding shell from the molding fixed mold, the bottom hole covering area is located on the ejector block 13, and the ejector block 13 is fixedly connected to the ejector seat, that is, the ejector core insert 2 on the ejector block 13 is still located in the bottom hole and is not completely detached.

[0042] Ejector seat from Figure 1 Rise to Figure 2 In the state, the rotating block 10 is subjected to the downward pressure of the ejector pin 17, and the top surface of the rotating block 10 is horizontal. Figure 3 In the state, restricted by the stop pin I9, the rotating inclined surface rotates downward, so that the ejector pin I7 rises for the second time, the round hole on the product is separated from the ejector core 2, the product leaves the cavity, and is demoulded smoothly.

[0043] Further optimization includes a stop pin II11 disposed below the rotation amount inclined plane;

[0044] A countersunk hole adapted to the stop pin II11 is provided below the accommodating groove of the ejector seat.

[0045] When the ejector rod moves downward, the ejector seat slides downward synchronously until the ejector seat falls to the bottom position, and the reset posture of the rotating block 10 is further improved through the stop pin II11.

[0046] It is further defined that the stop needle II11 includes a supporting portion, a limiting portion and an extending portion which are fixedly connected in sequence from top to bottom.

[0047] In the ejection state, the extension part extends from the bottom of the ejector support plate 5; the limit part is used to limit the movement of the stop pin II11 up and down in the countersunk hole, and the support part is used to support the rotating amount inclined surface, as shown in Figure 1 state.

[0048] It is further defined that the ejector seat comprises:

[0049] The ejector support plate 5 is pushed to slide reciprocatingly up and down above the bottom plate 3 by the up and down movement of the ejector rod; the countersunk hole is provided on the ejector support plate 5, and a stop pin II11 is provided in the countersunk hole, and the up and down movement limit of the stop pin II11 is provided in the countersunk hole;

[0050] The ejector plate 6 is fixedly arranged on the top surface of the ejector supporting plate 5 ; the accommodating groove is arranged on the ejector plate 6 .

[0051] It is further defined that a fixed bottom plate 3 is provided below the ejector seat;

[0052] A top stick hole 4 adapted to the top stick is provided in the middle of the bottom plate 3 .

[0053] It is further defined that the notch of the rotating block 10 is in a stepped shape.

[0054] The middle part of the rotating block 10 is hinged in the receiving groove through a hinge shaft 12 .

[0055] Regarding the contents disclosed in this case, there are a few points that need to be explained:

[0056] (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design;

[0057] (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to obtain new embodiments;

[0058] The above are only specific implementation methods disclosed in this case, but the protection scope of the present disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. Rotary shaft type secondary acceleration ejection mold, characterized in that: include: The ejector seat reciprocates up and down under the forming fixed mold through an ejector rod that moves up and down at the bottom; the ejector seat is provided with a hollow receiving groove; A rotating block (10) is hingedly disposed in the receiving groove; the ejector end of the rotating block (10) is provided with a notch extending downward from the top surface, and the bottom surface of the opposite end is provided with a rotating amount inclined surface; An ejector pin I (7) is vertically slidably disposed in the molding fixed mold, with its bottom portion being in contact with the bottom surface of the notch and its top portion extending upward, and is used to completely separate the molded shell (1) from the molding fixed mold; A stop pin I (9) is fixedly arranged on the bottom surface of the molding fixed mold, with its bottom corresponding to the opposite end of the rotating block (10), and is used to push the rotating amount inclined surface of the rotating block (10) to rotate downward.

2. The rotary shaft type secondary acceleration ejection mold according to claim 1, characterized in that: It also includes a stop pin II (11) arranged below the rotation amount inclined plane; A countersunk hole adapted to the stop pin II (11) is provided below the receiving groove of the ejector pin seat.

3. The rotary shaft type secondary acceleration ejection mold according to claim 2, characterized in that: The stop needle II (11) comprises a supporting portion, a limiting portion and an extending portion which are fixedly connected in sequence from top to bottom.

4. The rotary shaft type secondary acceleration ejection mold according to claim 2, characterized in that: The ejector seat comprises: The ejector support plate (5) is pushed by the ejector rod to slide reciprocatingly up and down; the countersunk hole is provided on the ejector support plate (5); An ejector plate (6) is fixedly arranged on the top surface of the ejector support plate (5); and the receiving groove is arranged on the ejector plate (6).

5. The rotary shaft type secondary acceleration ejection mold according to claim 1, characterized in that: A fixed bottom plate (3) is provided below the ejector seat; A top stick hole (4) adapted to the top stick is provided in the middle of the bottom plate (3).

6. The rotary shaft type secondary acceleration ejection mold according to claim 1, characterized in that: The notch of the rotating block (10) is in a stepped shape.

7. The rotary shaft type secondary acceleration ejection mold according to claim 1 or 5, characterized in that: The middle part of the rotating block (10) is hinged in the accommodating groove via a hinge shaft (12).

8. The rotary shaft type secondary acceleration ejection mold according to claim 1, characterized in that: A demoulding groove is provided on the top of the molding fixed mold; A top block (13) adapted thereto is provided in the demoulding groove; a plurality of top block core inserts (2) are provided on the top block; The ejector block (13) is fixedly connected to the ejector seat.

9. The rotary shaft type secondary acceleration ejection mold according to claim 8, characterized in that: The ejector block (13) is fixedly connected to the ejector seat via an ejector pin II (8).

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