Composite back-off demolding mechanism

Abstract

The utility model relates to the technical field of molds, in particular to a composite undercut demolding mechanism. The mold comprises a mold body, a cavity formed in the mold body, a male mold body used for jacking the cavity and a stripping module used for being separated from a product, a mounting groove is formed in the mold body, a guide bevel angle matched with the male mold body for mounting is arranged on one side of the mounting groove, a small angle pin block mounting groove is formed in one side of the bottom of the male mold body, and a small angle pin block is arranged in the small angle pin block mounting groove. The bottom of the male die is obliquely arranged upwards, and the stripping module comprises a small angle pin block arranged at the bottom of the male die and a main angle pin arranged at the bottom of the small angle pin block in a jacking manner. The utility model has the beneficial effects that according to the technical scheme, the stripping module which is matched with the product to synchronously move is arranged at the bottom of the product according to the structural characteristics of the product, meanwhile, the guide bevel angle is arranged in the mold to move, and the accelerated movement is realized by utilizing the inclination mutual relation in the movement process, so that the demolding is realized, the structure is simple and stable, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a composite undercut demoulding mechanism. Background Art

[0002] Reference Figure 1 , Figure 1 is an L-shaped structure product, and there are two groups of card slots in the middle position of the product. Specifically refer to Figure 1 the two groups of positions marked, and since the middle of the product is a hollow structure, a relatively complex structure needs to be set in the mold design to demould, and one or two groups of structures need to be set in cooperation to solve the problem.

[0003] Therefore, it is necessary to design a composite undercut demoulding mechanism to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a composite undercut demoulding mechanism to overcome the above-mentioned deficiencies existing in the current prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A composite undercut demoulding mechanism, which includes a mold, a cavity placed in the mold, a male mold for holding the cavity, and a stripping module for separating the product. The characteristics are as follows: one side and the top of the male mold are used to hold the product, and the other side is attached to the mold. The side of the male mold attached to the mold is set at an inclined angle, and the width becomes narrower from top to bottom. There is an installation groove in the mold, and a guide inclined angle for cooperating with the installation of the male mold is provided on one side of the installation groove. A small inclined pin block installation groove is opened on one side of the bottom of the male mold, and the bottom of the male mold is inclined upward. The stripping module includes a small inclined pin block placed at the bottom of the male mold and a main inclined pin holding the bottom of the small inclined pin block. The main inclined pin is inclined, and the main inclined pin is parallel to the guide inclined angle of the male mold.

[0007] Preferably, the top of the small inclined pin block holds the bottom of the male mold and can slide horizontally along the bottom of the male mold.

[0008] Preferably, a slot is provided on one side of the top of the main inclined pin, and the slot is connected to the small inclined pin block installation groove.

[0009] Preferably, a limiting block is installed at the left end of the small inclined pin block. A spring is sleeved outside the small inclined pin block, and one end of the spring holds the limiting block, and the other side holds the inner wall of the small inclined pin block installation groove.

[0010] The beneficial effects of the present utility model are as follows: According to the characteristics of the product structure, a stripping module that moves synchronously is arranged at the bottom of the product. At the same time, an inclined guide angle is arranged in the mold, and an accelerating motion is realized by utilizing the mutual relationship of the slopes during the movement process, thereby realizing demolding. The structure is simple and stable, and the cost is low. Brief Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the product structure;

[0012] Figure 2 It is the engagement diagram of a compound reverse buckle demolding mechanism of the present utility model;

[0013] Figure 3 It is the mold opening process diagram of a compound reverse buckle demolding mechanism of the present utility model;

[0014] Figure 4 It is the mold opening diagram of a compound reverse buckle demolding mechanism of the present utility model;

[0015] In the figure: 1, mold; 2, cavity; 3, male mold; 7, product; 31, installation groove; 32, inclined guide angle; 33, small inclined pin block installation groove; 4, small inclined pin block; 5, main inclined pin; 51, slotted; 41, limit block; 6, spring. Specific Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0017] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model.

[0018] Referring to Figures 2 to 4 , a compound reverse buckle demolding mechanism, which includes a mold 1, a cavity 2 placed in the mold, a male mold 3 for holding the cavity, and a stripping module for detaching the product 4;

[0019] One side and the top of the male mold 3 are used to hold the product 4, and the other side is attached to the mold 1. The side of the male mold 3 attached to the mold is set at an inclined angle and becomes narrower from top to bottom.

[0020] An installation groove 31 is provided in the mold 3, and a guiding inclined angle 32 for mating with the installation of the male mold is provided on one side of the installation groove 31. The male mold 3 can move up and down along the guiding inclined angle 32 and simultaneously fit the product, and drive the product to move synchronously while moving.

[0021] A small inclined pin block installation groove 33 is opened on one side of the bottom of the male mold 3. The bottom of the male mold is inclined upward. A small inclined pin block 4 is provided at the bottom of the male mold 3. The top of the small inclined pin block 4 holds the bottom of the male mold 3 and can slide horizontally along the bottom of the male mold 3.

[0022] A main inclined pin 5 is provided at the bottom of the small inclined pin block 4. The main inclined pin 5 is inclined, and the main inclined pin 5 is arranged parallel to the guiding inclined angle 32 of the male mold 3.

[0023] A slot 51 is provided on one side of the top of the main inclined pin 5, and the slot is connected to the small inclined pin block installation groove 33.

[0024] A limit block 41 is installed at the left end of the small inclined pin block 4. Part of the limit block is placed in the slot 51, and the other part is placed in the small inclined pin block installation groove 33. A spring 6 is sleeved outside the small inclined pin block 4. One end of the spring holds the limit block 41, and the other side holds the inner wall of the small inclined pin block installation groove 33.

[0025] In this embodiment, when the product 4 starts to be ejected, while the main inclined pin 5 moves upward to push the product 4 upward, due to the action of the guiding inclined angle 32 of the male mold, the main inclined pin 5 also moves left and upward. So that the reverse buckle in the vertical direction between the main inclined pin 5 and the product gradually disengages. The small inclined pin block 4 is driven by the main inclined pin 5 to move upward. At the same time, because the guiding inclined angle 32 holds the small inclined pin block 4 and prevents it from moving left, under the action of the main inclined pin 5 moving left, the small inclined pin block 4 will move upward at a speed greater than the upward movement speed of the main inclined pin 5, so that the small inclined pin block 4 gradually disengages from the reverse buckle position inside the product in the vertical direction. Continuing to eject, the main inclined pin 5 continues to move upward and left, and is completely disengaged from the vertical reverse buckle of the product. The small inclined pin block 4 continues to move upward and disengages from the reverse buckle position of the product in the vertical direction, reaches the guiding inclined angle 32 of the male mold, and while moving upward following the main inclined pin 5, moves left under the action of the spring and gradually disengages from the reverse buckle of the product. At this time, both the main inclined pin 5 and the small inclined pin block 4 are disengaged from the vertical reverse buckle and the reverse buckle 2 of the product, and the product can be taken out.

[0026] The beneficial effects of the present utility model are as follows. According to the characteristics of the product structure, the present technical solution sets a stripping module at the bottom of the product to cooperate with synchronous movement. At the same time, a guiding bevel angle movement is set in the mold, and an accelerating movement is achieved by utilizing the mutual relationship of the slopes during the movement process, thereby realizing demolding. The structure is simple and stable, and the cost is low.

[0027] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A composite reverse demolding mechanism, which comprises a mold, a cavity placed in the mold, a male mold for holding the cavity, and a stripping module for separating the product, and is characterized in that: One side and the top of the male mold are used to hold the product, and the other side is attached to the mold. The side of the male mold attached to the mold is set at an inclined angle, and the width becomes narrower from top to bottom. An installation groove is provided in the mold, and a guiding inclined angle for fitting the installation of the male mold is provided on one side of the installation groove. A small angled pin block installation groove is opened on one side of the bottom of the male mold. The bottom of the male mold is inclined upward. The stripping module includes a small angled pin block provided at the bottom of the male mold and a main angled pin provided at the bottom of the small angled pin block. The main angled pin is inclined, and the main angled pin is arranged parallel to the guiding inclined angle of the male mold.

2. The composite reverse demoulding mechanism according to claim 1, characterized in that: The top of the small angled pin block holds the bottom of the male mold and can slide horizontally along the bottom of the male mold.

3. The composite reverse demolding mechanism according to claim 1, wherein: A slot is provided on one side of the top of the main angled pin, and the slot is connected to the small angled pin block installation groove.

4. A composite reverse demolding mechanism according to claim 1, characterized in that: A limiting block is installed at the left end of the small angled pin block. A spring is sleeved outside the small angled pin block, and one end of the spring holds the limiting block, and the other end holds the inner wall of the small angled pin block installation groove.

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