High-strength long pitched roof mechanism for injection mold

Abstract

The utility model discloses a high-strength long pitched roof mechanism for an injection mold, which is characterized in that the pitched roof mechanism comprises an inclined guide rod, the bottom end of the inclined guide rod is fixedly connected to a fixed block, the fixed block is arranged in a lower fixed plate, the top end of the inclined guide rod is fixedly connected to the interior of an upper guide block, and the inclined guide rod is arranged in the upper guide block. The upper guide block is arranged in the movable mold plate, the inclined guide rod is movably connected in inclined guide grooves formed in the upper ejection plate and the lower ejection plate in a penetrating manner, the lower guide block is arranged between the upper ejection plate and the lower ejection plate, the lower guide block is fixedly connected with the bottom end of the inclined ejection rod, the side edge of the inclined ejection rod is provided with a protruding part, and the protruding part is fixedly connected with the inclined ejection rod. A protruding part is arranged at the top end of the inclined ejector rod, the protruding part is in sliding connection with a sliding groove formed in the inclined guide rod, the inclined ejector rod is movably connected in the inclined guide groove formed in the upper guide block in a penetrating mode, and an insert part is arranged at the top end of the inclined ejector rod and located in the mold core.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to a high-strength long inclined ejector mechanism for an injection mold. Background Art

[0002] When using injection molds to produce plastic products, there are sometimes undercut structures on the products. In order to allow the undercut structure to be demolded smoothly, many molds are equipped with a tilting mechanism to achieve demolding at the undercut structure. However, the space inside the mold is limited, and the ejector rod in the tilting mechanism is often a slender rod. The traditional slender rod tilting mechanism is often prone to bending or even breaking during the ejection action, which can cause the product to be unable to be demold smoothly, or even damage the mold itself.

[0003] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0004] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a high-strength long inclined ejector mechanism for an injection mold which has a simple structure, ingenious design, reasonable layout, small space requirement, high strength and can ensure smooth demoulding action.

[0005] The technical solution of the utility model is: a high-strength long inclined ejector mechanism for an injection mold, characterized in that: the inclined ejector mechanism comprises an inclined guide rod 1, the bottom end of the inclined guide rod 1 is fixedly connected to a fixed block 2, the fixed block 2 is arranged in a lower fixed plate 3, the top end of the inclined guide rod 1 is fixedly connected to an upper guide block 4, the upper guide block 4 is arranged in a dynamic model plate 5, the inclined guide rod 1 is movably connected in an inclined guide groove provided on an upper ejector plate 6 and a lower ejector plate 7,

[0006] A lower guide block 8 is provided between the upper ejection plate 6 and the lower ejection plate 7, and the lower guide block 8 is fixedly connected to the bottom end of the inclined ejector rod 9. A protrusion is provided on the side of the inclined ejector rod 9, and the protrusion is slidably connected to the slide groove provided on the inclined guide rod 1, and the inclined ejector rod 9 is movably connected in the inclined guide groove provided on the upper guide block 4. An insert portion 10 is provided at the top end of the inclined ejector rod 9, and the insert portion 10 is located in the mold core 11.

[0007] Compared with the prior art, the utility model has the following advantages:

[0008] The high-strength long inclined ejector mechanism for the injection mold of the embodiment of the utility model has a simple structure, ingenious design, and reasonable layout. It is designed to solve the problem that the inclined ejector mechanism used in the traditional injection mold has relatively low strength and is easy to bend or break during the ejection process. A special structure is designed, which sets a guide rod with the same inclined distribution for the inclined ejector rod. The ejector rod is slidably connected to the guide rod, and the two ends of the guide rod are respectively fixed to the fixed plate and the dynamic model plate, so that when the ejector rod performs the ejection action, the component force generated by it will be transmitted to the guide rod. This guide rod plus ejector rod structure can effectively enhance the overall strength of the ejector rod and prevent it from bending or breaking during the ejection action. In addition, the manufacturing process of this long inclined ejector mechanism is simple and the manufacturing cost is low. Therefore, it can be said that it has multiple advantages and is particularly suitable for promotion and application in this field, and its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is an exploded view of the components of the embodiment of the utility model.

[0010] Figure 2 It is a schematic diagram of the structure of an embodiment of the utility model (the inclined ejector rod is not ejected).

[0011] Figure 3 It is a structural schematic diagram of an embodiment of the utility model (eliminated by inclined ejector rod). DETAILED DESCRIPTION

[0012] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figures 1 to 3 As shown: A high-strength long inclined ejector mechanism for an injection mold, comprising an inclined guide rod 1, the bottom end of the inclined guide rod 1 is fixedly connected to a fixed block 2, the fixed block 2 is arranged in a lower fixed plate 3, the top end of the inclined guide rod 1 is fixedly connected to an upper guide block 4, the upper guide block 4 is arranged in a dynamic model plate 5, the inclined guide rod 1 is movably connected to an inclined guide groove provided on an upper ejection plate 6 and a lower ejection plate 7,

[0013] A lower guide block 8 is provided between the upper ejection plate 6 and the lower ejection plate 7, and the lower guide block 8 is fixedly connected to the bottom end of the inclined ejector rod 9. A protrusion is provided on the side of the inclined ejector rod 9, and the protrusion is slidably connected to the slide groove provided on the inclined guide rod 1, and the inclined ejector rod 9 is movably connected in the inclined guide groove provided on the upper guide block 4. An insert portion 10 is provided at the top end of the inclined ejector rod 9, and the insert portion 10 is located in the mold core 11.

[0014] The working process of the high-strength long inclined ejector mechanism for the injection mold of the utility model embodiment is as follows: in the mold closing state, the insert part 10 at the top of the inclined ejector rod 9 occupies a position in the mold cavity, and the molten material enters the mold cavity and is cooled to form a product;

[0015] When the mold is opened, the fixed mold part and the movable mold part are separated at the parting surface, and the product is exposed to the air. Then the upper ejector plate 6 and the lower ejector plate 7 move upward, driving the inclined ejector rod 9 to move upward along its own axial direction. At this time, the insert part 10 located at the top of the inclined ejector rod 9 will drive the workpiece to move obliquely upward, and this oblique upward movement can be essentially regarded as a combination of upward movement and horizontal movement. On the one hand, this movement will drive the workpiece to separate from the mold core 11 (upward movement), and on the other hand, it will drive the insert part 10 to move in the horizontal direction away from the product (horizontal movement), that is, while the product is ejected from the mold core 11, the undercut part on the insert part 10 is demoulded;

[0016] Since the protrusion on the inclined ejector rod 9 is slidably connected to the inclined guide rod 1, the inclined ejector rod 9 actually moves relative to the inclined guide rod 1 during the upward ejection process. During the movement, the inclined guide rod 1 can play a role in strengthening the inclined ejector rod 9; that is, if the inclined ejector rod 9 has a tendency to bend due to resistance during the upward ejection process, the inclined guide rod 1 can prevent such bending and deformation, thereby ensuring that the inclined ejector rod 9 can perform the ejection action normally and smoothly;

[0017] At the same time, since the inclined guide rod 1 and the inclined ejector rod 9 fit each other, the space occupied by this mechanism is basically the same as that of a common inclined ejector mechanism, and does not affect the layout of other structures in the mold.

Claims

1. A high-strength long inclined ejector mechanism for an injection mold, characterized in that: The inclined ejection mechanism comprises an inclined guide rod (1), the bottom end of the inclined guide rod (1) is fixedly connected to a fixed block (2), the fixed block (2) is arranged in a lower fixed plate (3), the top end of the inclined guide rod (1) is fixedly connected to an upper guide block (4), the upper guide block (4) is arranged in a movable model plate (5), and the inclined guide rod (1) is movably connected to an inclined guide groove provided on an upper ejection plate (6) and a lower ejection plate (7). A lower guide block (8) is provided between the upper ejection plate (6) and the lower ejection plate (7), the lower guide block (8) is fixedly connected to the bottom end of the inclined ejector rod (9), a protrusion is provided on the side of the inclined ejector rod (9), the protrusion is slidably connected to a slide groove provided on the inclined guide rod (1), and the inclined ejector rod (9) is movably connected to the inclined guide groove provided on the upper guide block (4), and an insert portion (10) is provided at the top end of the inclined ejector rod (9), and the insert portion (10) is located in the mold core (11).

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