Glue feeding structure for preventing buckling deformation of supporting-rib-free thin-wall 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 support-rib-free thin-wall plastic part, at least four groups of glue feeding components are arranged, a glue feeding mode is changed from two glue feeding points to at least four glue feeding points, and the distribution positions of the four groups of glue feeding components are selected through mold flow analysis. By controlling the sequence of point positions, the product reaches the workpiece flatness required by customers, deformation is reduced, the sequence of glue feeding of the four glue feeding assemblies is controlled through the sequential control system, buckling deformation of the product can be effectively improved, the buckling deformation of the product is improved to be smaller than 0.5 mm from being larger than 8 mm, and the product assembly and appearance requirements are met.

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 a thin-walled plastic part without supporting ribs from warping and deforming. 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] When the existing mold is used to inject thin-walled plastic parts without supporting ribs, this type of plastic parts has a long-standing problem in the plastic parts industry, how to solve the deformation problem without affecting the function and assembly of the product due to the limitations of the product structure and material characteristics. It is necessary to consider both the structural design and the performance requirements of the product and the various conditions of injection molding; therefore, the utility model proposes a glue injection structure for preventing the warping and deformation of thin-walled plastic parts without supporting ribs to solve the above problem. Utility Model Content

[0004] The utility model provides a glue feeding structure for preventing a thin-walled plastic part without supporting ribs from warping and deforming, aiming to solve the problems raised by the background technology.

[0005] The utility model is realized by providing a glue feeding structure for preventing warping and deformation of thin-walled plastic parts without supporting ribs, comprising a glue feeding component;

[0006] The glue feeding components are provided with at least four groups, the distribution positions of the four groups of glue feeding components are selected through mold flow analysis, and the glue feeding sequence of the four groups of glue feeding components is controlled by a timing control system;

[0007] The glue feeding assembly comprises a glue feeding head, a glue feeding pipe is arranged inside the glue feeding head, a water jacket is arranged outside the glue feeding head, and a sealing sleeve is arranged outside the glue feeding pipe.

[0008] Preferably, the water jacket is used to bring high-temperature fluid into the interior of the mold so that the plastic can be heated and formed inside the mold.

[0009] Preferably, the glue feeding head is connected to the internal cavity of the mold.

[0010] Preferably, the sealing sleeve is fixedly connected to the glue feeding head to protect the glue feeding head.

[0011] Preferably, the glue inlet pipe conveys the injection molding material.

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

[0013] The glue feeding structure of the utility model has at least four groups of glue feeding components, and the glue feeding method is changed from two glue feeding points to at least four glue feeding points. The distribution positions of the four groups of glue feeding components are selected through mold flow analysis, and the product can achieve the flatness of the parts required by the customer by controlling the sequence of the points, and the deformation is reduced. The four groups of glue feeding components control the sequence of glue feeding through a timing control system, which can also effectively improve the warping deformation of the product, and improve the warping deformation of the product from >8mm to <0.5mm, meeting the product assembly and appearance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the overall structure of the utility model;

[0016] Figure 3 This is a three-dimensional diagram of the glue feeding component in the utility model;

[0017] Figure 4 This is a three-dimensional diagram of the water jacket in the utility model;

[0018] Figure 5 This is a three-dimensional diagram of the glue feeding head in the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of a thin-walled plastic part in an embodiment;

[0020] Figure 7 It is a stereogram of the glue feeding structure in the comparative example;

[0021] Figure 8 It is a top view of the glue feeding structure in the comparative example;

[0022] Fig. 9 Schematic diagram of the structure of thin-walled plastic parts in the comparative example.

[0023] In the figure:

[0024] 1. Glue inlet assembly; 11. Water jacket; 12. Glue inlet head; 13. Sealing sleeve; 14. Glue inlet pipe;

[0025] 2. Thin-walled plastic parts. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Example:

[0032] See also Figures 1 to 6 The utility model provides a technical solution: a glue feeding structure for preventing warping and deformation of thin-walled plastic parts without supporting ribs, including a glue feeding component 1; the glue feeding component 1 is provided with at least four groups, the distribution positions of the four groups of glue feeding components 1 are selected through mold flow analysis, and the four groups of glue feeding components 1 control the glue feeding sequence through a timing control system; the glue feeding component 1 includes a glue feeding head 12, a glue feeding pipe 14 is provided inside the glue feeding head 12, a water jacket 11 is provided outside the glue feeding head 12, and a sealing sleeve 13 is provided outside the glue feeding pipe 14.

[0033] Furthermore, the water jacket 11 is used to bring high-temperature fluid into the mold so that the plastic can be heated and formed inside the mold.

[0034] Furthermore, the glue feed head 12 is connected to the inner cavity of the mold.

[0035] Furthermore, the sealing sleeve 13 is fixedly connected to the glue feeding head 12 to protect the glue feeding head 12 .

[0036] Furthermore, the glue inlet pipe 14 delivers the injection material.

[0037] In this embodiment, at least four groups of glue feeding components 1 are provided, and the glue feeding method is set to at least four glue feeding points. The distribution positions of the four groups of glue feeding components 1 are selected through mold flow analysis. By controlling the order of the points, the product can achieve the flatness of the product required by the customer and reduce deformation. The four groups of glue feeding components 1 control the order of glue feeding through a timing control system, which can also effectively improve the warpage deformation of the product, and improve the warpage deformation of the product from > 8mm to < 0.5mm, meeting the product assembly and appearance requirements; refer to Figure 6 This is the finished product structure of the thin-walled plastic part 2 obtained by injection molding of the injection molding structure;

[0038] Among them, mold flow analysis refers to the use of data simulation software to complete the simulation of injection molding through computers, simulate the process of molding injection, 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; the timing control system must make the computer work in an orderly manner, and there are strict requirements on the generation time, stabilization time, cancellation time and the relationship between various operation signals. The time control of the operation signal is called timing control. Only strict timing control can ensure the organic combination of various functional components in the computer system. The time control of the computer is called timing. The operation of each instruction in the instruction system is completed by a micro-operation sequence, and these micro-operations are executed under the control of the micro-operation control signal. That is, the execution process of the instruction is carried out in time sequence, that is, the working process of the computer is carried out in time sequence. The function of the timing system is to provide various operation timing signals for the execution of instructions.

[0039] Comparative Example:

[0040] See also Figures 7 to 9 A glue feeding structure for preventing warping and deformation of thin-walled plastic parts without supporting ribs includes a glue feeding component 1; the glue feeding component 1 is provided with two groups, the two groups of glue feeding components 1 are relatively spaced and distributed, and the two groups of glue feeding components 1 feed glue through a control system; the glue feeding component 1 includes a glue feeding head 12, a glue feeding pipe 14 is provided inside the glue feeding head 12, a water jacket 11 is provided outside the glue feeding head 12, and a sealing sleeve 13 is provided outside the glue feeding pipe 14.

[0041] Furthermore, the water jacket 11 is used to bring high-temperature fluid into the mold so that the plastic can be heated and formed inside the mold.

[0042] Furthermore, the glue feed head 12 is connected to the inner cavity of the mold.

[0043] Furthermore, the sealing sleeve 13 is fixedly connected to the glue feeding head 12 to protect the glue feeding head 12 .

[0044] Furthermore, the glue inlet pipe 14 delivers the injection material.

[0045] In this embodiment, at least two groups of glue feeding components 1 are provided, and the glue feeding method is set to two glue feeding points. The two groups of glue feeding components 1 are distributed at relative intervals, and the two groups of glue feeding components 1 are glued through the control system. Fig. 9 This is the finished product structure of the thin-walled plastic part 2 obtained by injection molding of the present injection molding structure, wherein the warping deformation of the thin-walled plastic part 2 product is greater than 8 mm.

[0046] Comparison of unsupported thin-walled plastic parts produced by the embodiment and the comparative example:

[0047] The embodiment of the invention has at least four groups of glue feeding components 1, and the glue feeding method is changed from two glue feeding points in the comparative example to at least four glue feeding points in the embodiment. The distribution positions of the four groups of glue feeding components 1 in the embodiment are selected through mold flow analysis, and the order of the points is controlled so that the product can achieve the flatness of the parts required by the customer and reduce deformation. The four groups of glue feeding components 1 control the order of glue feeding through a timing control system, which can also effectively improve the warping deformation of the product, and improve the warping deformation of the product from >8mm to <0.5mm, meeting the product assembly and appearance requirements.

[0048] 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 thin-walled plastic parts without supporting ribs, characterized in that: It comprises a glue feeding component (1); The glue feeding components (1) are provided with at least four groups, the distribution positions of the four groups of glue feeding components (1) are selected through mold flow analysis, and the glue feeding sequence of the four groups of glue feeding components (1) is controlled by a timing control system; The glue feeding assembly (1) comprises a glue feeding head (12), a glue feeding pipe (14) is provided inside the glue feeding head (12), a water jacket (11) is provided outside the glue feeding head (12), and a sealing sleeve (13) is provided outside the glue feeding pipe (14).

2. A glue injection structure for preventing warping and deformation of thin-walled plastic parts without supporting ribs according to claim 1, characterized in that: The water jacket (11) is used to bring high-temperature fluid into the interior of the mold so that the plastic can be heated and formed inside the mold.

3. The glue injection structure for preventing warping and deformation of thin-walled plastic parts without supporting ribs according to claim 1, characterized in that: The glue feeding head (12) is connected to the internal cavity of the mold.

4. The glue injection structure for preventing warping and deformation of thin-walled plastic parts without supporting ribs according to claim 1, characterized in that: The sealing sleeve (13) is fixedly connected to the glue feeding head (12) and is used to protect the glue feeding head (12).

5. The glue injection structure for preventing warping and deformation of thin-walled plastic parts without supporting ribs according to claim 1, characterized in that: The glue inlet pipe (14) conveys the injection molding material.

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