Glue feeding structure for preventing buckling deformation of long-strip-shaped plastic part

Abstract

The utility model is applicable to the technical field of glue feeding heads, and provides a glue feeding structure for preventing buckling deformation of a long-strip-shaped plastic part, a glue feeding assembly comprises a glue feeding pipe, the glue feeding pipe is communicated with an injection runner, the injection runner is provided with at least two glue feeding heads, the glue feeding assembly confirms the glue feeding mode of the injection runner through mold flow analysis, the glue feeding mode of the part is changed, and the glue feeding efficiency is improved. One point is changed into at least two glue inlet points, so that the injection molding pressure is reduced, deformation caused by internal stress concentration of a product due to overlarge injection molding pressure is reduced, the buckling deformation of the product is improved to be smaller than 1mm from being larger than 5mm, the flatness reaches the expected effect, and the finished product meets the design requirement after being assembled.

Description

Technical Field

[0001] The utility model belongs to the technical field of glue feeding heads, and in particular relates to a glue feeding structure for preventing warping and deformation of long strip plastic parts. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into complex-shaped parts. Injection molding is suitable for mass production and complex-shaped products and other molding and processing fields.

[0003] In the application of plastic parts, for some long strip parts, the problems that usually need to be solved are the limitations of product structure and the troubles of deformation and warping characteristics. Solving the deformation problem has always been a very comprehensive difficulty in the plastic parts industry. It is necessary to consider both the ability of structural design to meet product requirements and various conditions of injection molding; therefore, the utility model proposes a glue feeding structure for preventing warping and deformation of long strip plastic parts to solve the above problems. Utility Model Content

[0004] The utility model provides a glue feeding structure for preventing warping and deformation of a long strip plastic part, aiming to solve the problems raised by the background technology.

[0005] The utility model is realized in this way: a glue feeding structure for preventing warping and deformation of a long strip plastic part comprises a glue feeding component;

[0006] The glue feeding assembly comprises a glue feeding pipe, the glue feeding pipe is connected to an injection flow channel, and the injection flow channel is provided with at least two glue feeding heads;

[0007] The glue feeding component confirms the glue feeding method of the injection flow channel through mold flow analysis.

[0008] Preferably, the glue inlet pipe is used to transport injection molding material.

[0009] Preferably, the glue inlet pipe is connected to a material box of the injection molding material.

[0010] Preferably, the injection runner is used to adjust the injection method of injection molding.

[0011] Preferably, the glue feeding head is connected to the internal cavity of the mold.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses a glue feeding structure, a glue feeding component including a glue feeding pipe, the glue feeding pipe is connected to an injection flow channel, at least two glue feeding heads are arranged on the injection flow channel, the glue feeding component confirms the glue feeding mode of the injection flow channel through mold flow analysis, changes the glue feeding mode of the parts from one point to at least two glue feeding points, thereby reducing the injection pressure, reducing the deformation caused by the internal stress concentration of the product due to the excessive injection pressure, the warping deformation of the product is improved from more than 5mm to less than 1mm, the flatness reaches the expected effect, and the finished product meets the design requirements after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the glue feeding structure in the embodiment;

[0015] Figure 2 It is a front view of the overall structure of the glue feeding structure in the embodiment;

[0016] Figure 3 It is a three-dimensional diagram of a long strip of plastic in the embodiment;

[0017] Figure 4 It is a three-dimensional diagram of the overall structure of the glue feeding structure in the comparative example;

[0018] Figure 5 It is a front view of the overall structure of the glue feeding structure in the comparative example.

[0019] In the figure:

[0020] 1. Glue inlet assembly; 11. Glue inlet pipe; 12. Injection flow channel; 13. Glue inlet head;

[0021] 2. Long plastic parts. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.

[0027] Example:

[0028] See also Figures 1 to 3 The utility model provides a technical solution: a glue feeding structure for preventing warping and deformation of long strip plastic parts, including a glue feeding component 1; the glue feeding component 1 includes a glue feeding pipe 11, the glue feeding pipe 11 is connected to an injection flow channel 12, and at least two glue feeding heads 13 are provided on the injection flow channel 12; the glue feeding component 1 confirms the glue feeding method of the injection flow channel 12 through mold flow analysis.

[0029] Furthermore, the glue inlet pipe 11 is used to transport the injection material.

[0030] Furthermore, the glue inlet pipe 11 is connected to a material box of the injection material.

[0031] Furthermore, the injection channel 12 is used to adjust the injection method of the injection molding.

[0032] Furthermore, the glue feed head 13 is connected to the inner cavity of the mold.

[0033] In this embodiment, the glue feeding component 1 includes a glue feeding pipe 11, which is connected to an injection flow channel 12. At least two glue feeding heads 13 are provided on the injection flow channel 12. The glue feeding component 1 confirms the glue feeding method of the injection flow channel 12 through mold flow analysis, changes the glue feeding method of the part from one point to at least two glue feeding points, thereby reducing the injection pressure and reducing the deformation caused by the internal stress concentration of the product due to excessive injection pressure; when injection molding is required, the glue feeding pipe 11 is connected to the material box of the injection molding material, and the glue feeding pipe 11 is used to transport the injection molding material. The injection molding material is transported to the inside of the injection flow channel 12 through the glue feeding pipe 11. The injection molding material inside the injection flow channel 12 is distributed to multiple glue feeding heads 13 according to the glue feeding method confirmed by the mold flow analysis. The glue feeding head 13 sends the injection molding material to the inside of the mold cavity for injection molding, wherein refer to Figure 3 This is a finished product of a long strip of plastic part 2 produced by injection molding of the injection molding structure;

[0034] Mold flow analysis refers to the use of data simulation software to complete the simulation of injection molding through a computer, simulate the molding injection process, and obtain some data results. Through these results, the feasibility of the mold scheme is evaluated, and the mold design scheme and plastic part design scheme are improved. This scheme can be used to better design the injection method of the injection runner 12, thereby improving the deformation caused by the internal stress concentration of the product due to excessive injection pressure.

[0035] Comparative Example:

[0036] A glue feeding structure for preventing warping and deformation of a long strip plastic part comprises a glue feeding component 1; the glue feeding component 1 comprises a glue feeding pipe 11, the glue feeding pipe 11 is connected to an injection flow channel 12, and a glue feeding head 13 is provided on the injection flow channel 12.

[0037] Furthermore, the glue inlet pipe 11 is used to transport the injection material.

[0038] Furthermore, the glue inlet pipe 11 is connected to a material box of the injection material.

[0039] Furthermore, the injection channel 12 is used to adjust the injection method of the injection molding.

[0040] Furthermore, the glue feed head 13 is connected to the inner cavity of the mold.

[0041] In this embodiment, the glue inlet component 1 includes a glue inlet pipe 11, which is connected to an injection channel 12. A glue inlet head 13 is provided on the injection channel 12. The injection channel 12 controls the glue inlet amount through a control system. At this time, the long plastic part 2 molded by injection may be deformed due to the internal stress concentration of the product caused by excessive injection pressure.

[0042] Comparison of the long strip plastic parts 2 produced by the embodiment and the comparative example:

[0043] The glue feeding component 1 in the embodiment includes a glue feeding pipe 11, which is connected to an injection channel 12. At least two glue feeding heads 13 are provided on the injection channel 12. The glue feeding component 1 confirms the glue feeding method of the injection channel 12 through mold flow analysis, and changes the glue feeding method of the part from one point in the comparative example to at least two glue feeding points in the embodiment, thereby reducing the injection pressure and reducing the deformation caused by the internal stress concentration of the product due to excessive injection pressure. The warping deformation of the product is improved from >5mm to <1mm, and the flatness reaches the expected effect. After the finished product is assembled, it meets the design requirements.

[0044] The working principle and use process of this utility model:

[0045] When injection molding is required, the glue inlet pipe 11 is connected to the material box of the injection molding material, and the glue inlet pipe 11 is used to transport the injection molding material. The injection molding material is transported to the inside of the injection runner 12 through the glue inlet pipe 11. The injection molding material in the injection runner 12 is distributed to multiple glue inlet heads 13 according to the glue inlet method confirmed by the mold flow analysis. The glue inlet head 13 delivers the injection molding material to the inside of the mold cavity for injection molding.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A glue injection structure for preventing warping and deformation of a long strip plastic part, characterized in that: It includes a glue feeding component (1); The glue inlet assembly (1) comprises a glue inlet pipe (11), the glue inlet pipe (11) is connected to an injection flow channel (12), and the injection flow channel (12) is provided with at least two glue inlet heads (13); The glue feeding component (1) confirms the glue feeding method of the injection channel (12) through mold flow analysis.

2. The glue injection structure for preventing warping and deformation of a long strip plastic part according to claim 1, characterized in that: The glue inlet pipe (11) is used for conveying injection molding material.

3. The glue injection structure for preventing warping and deformation of a long strip plastic part according to claim 1, characterized in that: The glue inlet pipe (11) is connected to a material box of injection molding material.

4. The glue injection structure for preventing warping and deformation of a long strip plastic part according to claim 1, characterized in that: The injection flow channel (12) is used to adjust the injection method of the injection molding.

5. The glue injection structure for preventing warping and deformation of a long strip plastic part according to claim 1, characterized in that: The glue feeding head (13) is connected to the internal cavity of the mold.

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