Swing rod demolding mechanism

Abstract

The utility model discloses a swing rod demolding mechanism which comprises a mold core, a swing rod assembly is arranged in the mold core, a hanging table is arranged at the bottom of the swing rod assembly, the swing rod assembly is movably connected with the mold core in a sleeved mode, the swing rod assembly comprises two oppositely-arranged push rods, the two push rods are arranged in a spaced mode, swing rods are arranged on the tops of the push rods respectively, and the swing rods are elastically connected with the mold core in a sleeved mode. Pushing force is applied to the hanging table to push the push rod to move until the swing rod at the top of the push rod is ejected out of the mold core, and meanwhile, the swing rod pops up towards the two sides to be separated from the product to complete demolding of the product. For a plastic product with an inverted buckle, demolding is carried out through movable sleeving matching of the swing rod assembly and the mold core, the occupied space in the mold core can be reduced, the number of mold cavities of the product is increased, and the machining cost of the product is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold injection molding, and specifically relates to a swing rod demoulding mechanism. Background Art

[0002] The slider refers to a mechanism that can obtain lateral core pulling or lateral parting and reset action to pull out the product from undercut, sunken and other positions. In the injection molding industry, the slider is a common structure.

[0003] In actual use, we often encounter plastic products with undercuts on both sides. If a slider structure is used for demoulding, it will lead to a high mold occupancy rate and a small number of mold cavities, thereby increasing costs. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a swing rod demoulding mechanism, which uses a swing rod structure for demoulding to increase the number of mold cavities and reduce the processing cost of the overall product.

[0005] The described rocker demoulding mechanism comprises a mold core, a rocker assembly is arranged in the mold core, a hanging platform is arranged at the bottom of the rocker assembly, the rocker assembly is movably sleeved with the mold core, the rocker assembly comprises two push rods arranged opposite to each other, the two push rods are arranged at an interval, and a product accommodating cavity is formed between the two push rods; rocker rods are respectively arranged on the top of the push rods, the rocker rods are elastically sleeved with the mold core, and in the initial position, the rocker rods are placed in the mold core; a thrust is applied to the hanging platform to push the push rod to move until the rocker rod at the top of the push rod is pushed out of the mold core, and at the same time, the rocker rod pops out to both sides to separate from the product to complete the demoulding of the product.

[0006] Furthermore, opposite inner sides of the two swing arms are provided with inverted hooks for cooperating with product processing.

[0007] Furthermore, an outer side wall of the swing rod is provided with an outer guide slope, and when the product is demoulded, the outer guide slope is pushed out and exposed outside the mold core.

[0008] Furthermore, an inner guide slope is provided on the inner wall of the mold core corresponding to the swing rod, and when the swing rod is reset, the outer guide slope enters the mold core along the inner guide slope.

[0009] Furthermore, the outer diameter of the hanging platform is greater than the inner diameter of the mold core.

[0010] Furthermore, the height of the mold core is smaller than the height of the push rod.

[0011] Furthermore, a section is provided on the inner wall of the push rod, and the distance between the two push rods above the section is greater than the distance between the two push rods below the section; and the accommodating cavity is located above the section.

[0012] Compared with the prior art, the utility model has the following advantages: for plastic products with undercuts, the present application demoulds by means of the movable sleeve connection between the swing arm assembly and the mold core, which can reduce the occupied space in the mold core, increase the number of mold cavities of the product, and reduce the processing cost of the product. Compared with the existing slider demoulding structure, the overall occupied area of ​​the swing arm is significantly smaller than the occupied area of ​​the slider; and the swing arm assembly and the mold core are demoulded and reset by linear sliding, while the slider structure requires the slider to slide horizontally for demoulding and reset, resulting in a larger active space required for the slider, resulting in fewer mold cavities and increased processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the demoulding mechanism structure of the utility model (demolding state);

[0014] Figure 2 This is a schematic diagram of the demoulding mechanism structure of the utility model (initial state);

[0015] Figure 3 This is a schematic diagram of the structure of the swing rod assembly of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the mold core of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of the existing slider demoulding mechanism.

[0018] In the figure: 1-mold core, 11-inner guide slope, 2-rocker assembly, 21-push rod, 211-arc surface, 22-rocker, 221-outer guide slope, 23-hook piece, 3-hanging platform, 4-accommodating cavity, 5-slider. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the present invention is further described below in conjunction with the accompanying drawings.

[0020] like Figure 1-Figure 4 As shown, a swing rod demoulding mechanism comprises a mold core 1, a swing rod assembly 2 is arranged in the mold core 1, a hanging platform 3 is arranged at the bottom of the swing rod assembly 2, and the swing rod assembly 2 is movably sleeved with the mold core 1; the swing rod assembly 2 comprises two push rods 21 arranged opposite to each other, and the two push rods 21 are arranged at an interval, and a product accommodating cavity 4 is formed between the two push rods; swing rods 22 are respectively arranged on the tops of the two push rods 21, and hook pieces 23 are arranged on the opposite inner sides of the two swing rods 22 for cooperating with the processing of the product; the swing rod 22 is elastically sleeved with the mold core 1, and in the initial position, the swing rod 22 is placed in the mold core 1; a thrust is applied to the hanging platform 3 to push the push rod 21 to move until the swing rod 22 at the top of the push rod 21 is pushed out of the mold core 1, and at the same time, the swing rod 22 pops out to both sides to separate from the product to complete the demoulding of the product.

[0021] In order to facilitate the reset of the swing rod 22 and the push rod 21, an outer guide slope 221 is provided on the outer side wall of the swing rod 22, and an inner guide slope 11 is provided on the inner wall of the mold core 1 corresponding to the swing rod 22. When the swing rod 22 and the push rod 21 are reset, the outer guide slope 221 enters the mold core 1 along the inner guide slope 11; when the product is demolded, the outer guide slope 221 is pushed out and exposed outside the mold core 1. In addition, the middle part of the push rod 21 is concave to form an arc surface 211, which is convenient for the push rod 21 to enter or slide out of the mold core 1. In order to prevent the product from falling into the hanging platform 3, a cut surface 212 is provided on the inner wall of the push rod 21, and the distance between the two push rods 21 above the cut surface 212 is greater than the distance below the cut surface 212; the accommodating cavity 4 is located above the cut surface 212.

[0022] In order to prevent the mold core 1 from falling out of the push rod assembly 2, the outer diameter of the hanging platform 3 needs to be larger than the inner diameter of the mold core 1; in addition, the height of the mold core 1 is smaller than the height of the push rod 21. The hanging platform 3 can be driven by a servo motor or a cylinder assembly, or it can be driven manually or mechanically.

[0023] like Figure 5 As shown, the existing slider demoulding mechanism cooperates with product processing through two relatively arranged sliders 5, wherein the area of ​​the slider 5 is 12mm*16mm. However, in the present application, the area of ​​the swing rod 22 is preferably 2.6mm*8mm. The use of the swing rod assembly 2 to cooperate with product demoulding can double the number of mold cavities on the basis of the original mold, optimize the use space of the mold, improve the utilization rate of the mold, and maximize the benefits of product processing.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A swing rod demoulding mechanism, comprising a mold core (1), characterized in that: A swing rod assembly (2) is arranged in the mold core (1), a hanging platform (3) is arranged at the bottom of the swing rod assembly (2), and the swing rod assembly (2) is movably sleeved with the mold core (1); the swing rod assembly (2) comprises two push rods (21) arranged opposite to each other, the two push rods (21) are arranged at an interval, and a product accommodating cavity (4) is formed between the two push rods; swing rods (22) are arranged at the tops of the push rods (21), and the swing rods (22) are elastically sleeved with the mold core (1), and in an initial position, the swing rods (22) are placed in the mold core (1); a thrust is applied to the hanging platform (3) to push the push rods (21) to move until the swing rods (22) at the tops of the push rods (21) are pushed out of the mold core (1), and at the same time, the swing rods (22) are ejected to both sides to separate from the product, and the product is demoulded.

2. A swing rod demoulding mechanism according to claim 1, characterized in that: The opposite inner sides of the two swing rods (22) are both provided with hook pieces (23) for cooperating with the processing of products.

3. A swing rod demoulding mechanism according to claim 2, characterized in that: An outer side wall of the swing rod (22) is provided with an outer guide inclined surface (221), and when the product is demoulded, the outer guide inclined surface (221) is pushed out to the outside of the mold core (1).

4. A swing rod demoulding mechanism according to claim 3, characterized in that: An inner guide slope (11) is provided on the inner wall of the mold core (1) corresponding to the swing rod (22); when the swing rod (22) is reset, the outer guide slope (221) enters the mold core (1) along the inner guide slope (11).

5. A swing rod demoulding mechanism according to any one of claims 1 to 4, characterized in that: The outer diameter of the hanging platform (3) is greater than the inner diameter of the mold core (1).

6. A swing rod demoulding mechanism according to claim 5, characterized in that: The height of the mold core (1) is smaller than the height of the push rod (21).

7. A swing rod demoulding mechanism according to any one of claims 1 to 4, characterized in that: A cut surface (212) is provided on the inner wall of the push rod (21), and the distance between the two push rods (21) above the cut surface (212) is greater than the distance between the two push rods below the cut surface (212); the accommodating cavity (4) is located above the cut surface (212).

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