Connecting rod driven core pulling mechanism

Abstract

The utility model discloses a connecting rod driven core pulling mechanism which comprises a driving rod, a guide block is arranged at the right end of the driving rod, a first connecting rod and a second connecting rod are rotationally connected to the positions, close to the two ends, of the top of the guide block respectively, and a left inverted buckle and a right inverted buckle are rotationally connected to the top of the first connecting rod and the top of the second connecting rod respectively. The left inverted buckle and the right inverted buckle are movably connected through a positioning pin, a mold shell is arranged outside the left inverted buckle and the right inverted buckle, a product shell is arranged at the top of the mold shell, and the left inverted buckle and the right inverted buckle are rotationally connected with an inner cavity of the mold shell through the positioning pin. The core-pulling mechanism is driven by the connecting rod, so that the demoulding process of a product with a complex structure is obviously optimized. Through the accurate connecting rod transmission design, even if the internal space of the product is extremely limited, the efficient core pulling action can be realized, the appearance of the product does not need to be compromised too much, and the design aesthetic feeling of the product is perfectly reserved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic mold manufacturing, in particular to a connecting rod driven core pulling mechanism. Background Art

[0002] In industrial production, various molds and tools are used to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, the mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material.

[0003] For some special products, due to the process and movement requirements, the structure inside the product has a small exit space and cannot be demoulded, resulting in too many changes to the product and the beauty of the product cannot be fully displayed. Utility Model Content

[0004] The purpose of the utility model is to provide a connecting rod driven core pulling mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connecting rod driven core pulling mechanism, including a driving rod, a guide block is provided at the right end of the driving rod, the top of the guide block is rotatably connected with a first connecting rod and a second connecting rod at the two end positions respectively, the top of the first connecting rod and the second connecting rod are rotatably connected with a left undercut and a right undercut respectively, and the left undercut and the right undercut are movably connected by a positioning pin.

[0006] A mold shell is arranged outside the left undercut and the right undercut, a product shell is arranged on the top of the mold shell, and the left undercut and the right undercut are rotatably connected to the inner cavity of the mold shell through positioning pins.

[0007] The right end of the left inverted portion penetrates into the product shell.

[0008] The top end of the right inverted portion contacts the product shell.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model adopts the connecting rod to drive the core pulling mechanism, which significantly optimizes the demoulding process of complex structure products. Through the precise connecting rod transmission design, even when the internal space of the product is extremely limited, efficient core pulling action can be achieved without making too much compromise on the product appearance, perfectly retaining the design aesthetics of the product. This solution not only improves production efficiency and reduces production costs, but also ensures the stability and consistency of product quality, providing solid technical support for the smooth mass production and listing of products, helping enterprises gain an advantage in the fierce market competition. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural stereogram of the utility model;

[0012] Figure 2 It is a three-dimensional diagram of the first partial structure of the utility model;

[0013] Figure 3 It is a third partial structural perspective view of the second embodiment of the present invention;

[0014] Figure 4 It is a bottom view of the utility model;

[0015] Figure 5 It is a three-dimensional diagram of the product shell of the utility model.

[0016] In the figure: 1. driving rod; 2. guide block; 3. first connecting rod; 4. second connecting rod; 5. mold shell; 6. product shell; 7. left undercut; 8. right undercut; 9. positioning pin. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5 The utility model provides a technical solution: a connecting rod driven core pulling mechanism, including a driving rod 1, a guide block 2 is arranged at the right end of the driving rod 1, the top of the guide block 2 is rotatably connected with a first connecting rod 3 and a second connecting rod 4 at both ends, the top of the first connecting rod 3 and the second connecting rod 4 are rotatably connected with a left undercut 7 and a right undercut 8 respectively, and the left undercut 7 and the right undercut 8 are movably connected by a positioning pin 9.

[0019] A mold shell 5 is arranged outside the left undercut 7 and the right undercut 8 , a product shell 6 is arranged on the top of the mold shell 5 , and the left undercut 7 and the right undercut 8 are rotatably connected to the inner cavity of the mold shell 5 through a positioning pin 9 .

[0020] The right end of the left undercut 7 penetrates into the product shell 6 .

[0021] The top end of the right undercut 8 contacts the product shell 6 .

[0022] Driving rod 1: As the power source of the entire core pulling mechanism, it is driven to move by external power (such as motor, cylinder, etc.).

[0023] When external power acts on the driving rod 1, the driving rod 1 moves along a predetermined direction (such as horizontally or vertically), thereby driving other components connected thereto to move.

[0024] Guide block 2: provides a stable rotation fulcrum for the first connecting rod 3 and the second connecting rod 4, ensuring the stability and accuracy of both during the rotation process.

[0025] The guide block 2 is fixed on the driving rod 1 and moves along with the movement of the driving rod 1 . At the same time, it serves as the center point of the connecting rod rotation, allowing the first connecting rod 3 and the second connecting rod 4 to rotate around it.

[0026] The first connecting rod 3 and the second connecting rod 4 convert the linear motion of the driving rod 1 into the rotational motion of the left undercut 7 and the right undercut 8 to realize the core pulling function.

[0027] The left undercut 7 and the right undercut 8 act directly on the inside of the product shell 6 and change the spatial position of the internal structure of the product through rotational motion to facilitate demoulding of the product.

[0028] The left undercut 7 and the right undercut 8 are respectively connected to the mold shell 5 via positioning pins 9 to ensure that they can move inside the mold shell 5 .

[0029] Positioning pin 9: ensures that the relative positions of the left undercut 7 and the right undercut 8 are stable during the rotation process to prevent the two from being separated or misaligned.

[0030] The positioning pin 9 passes through the preset holes of the left undercut 7 and the right undercut 8 to flexibly connect the two together while allowing them to rotate around the axis of the positioning pin 9.

[0031] Mold shell 5: provides molding space, protects internal components from external interference, and ensures the stability and accuracy of the molding process.

[0032] Product shell 6: placed in the mold shell 5, it is the prototype of the final product and is formed by filling materials through injection molding, blow molding and other processes.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting rod driven core pulling mechanism, comprising a driving rod (1), characterized in that: A guide block (2) is provided at the right end of the driving rod (1); the top of the guide block (2) is rotatably connected to a first connecting rod (3) and a second connecting rod (4) at both ends; the tops of the first connecting rod (3) and the second connecting rod (4) are rotatably connected to a left undercut (7) and a right undercut (8); the left undercut (7) and the right undercut (8) are movably connected via a positioning pin (9).

2. A connecting rod driven core pulling mechanism according to claim 1, characterized in that: A mold shell (5) is arranged outside the left undercut (7) and the right undercut (8), a product shell (6) is arranged on the top of the mold shell (5), and the left undercut (7) and the right undercut (8) are rotatably connected to the inner cavity of the mold shell (5) via a positioning pin (9).

3. A connecting rod driven core pulling mechanism according to claim 2, characterized in that: The right end of the left undercut (7) penetrates into the product shell (6).

4. A connecting rod driven core pulling mechanism according to claim 1, characterized in that: The top end of the right undercut (8) is in contact with the product shell (6).

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