A thin-walled low-warpage nylon plastic injection molding for automobiles

Abstract

The utility model discloses a thin-walled low-warpage nylon plastic injection molded part for automobiles, which relates to the technical field of automobile nylon plastic injection molded parts, and comprises a base and a support rod, wherein the top of the base is fixedly connected to the support rod, and the top of the support rod is fixedly connected to a support plate, one side of the support plate is fixedly connected to a liquid storage tank, and the bottom of the liquid storage tank is provided with a plurality of groups of gates, and one side of the support plate is fixedly connected to a moving mechanism. Compared with the existing ordinary automobile nylon plastic injection molded parts, the use of the plurality of groups of gates can shorten the flow ratio of the plastic, thereby making the material density in the mold cavity more uniform and the shrinkage more uniform, and the entire injection molded part can be filled under a relatively small injection pressure, and the relatively small injection pressure can reduce the molecular orientation tendency of the plastic and reduce its internal stress, thereby reducing the deformation of the injection molded part, and the heating block changes the temperature of the mold, which can improve the intrinsic performance and surface quality of the injection molded part.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile nylon plastic injection molding parts, in particular to a thin-wall low-warpage nylon plastic injection molding part for automobiles. Background Art

[0002] With the popularity of new energy vehicles, battery life has attracted much attention. However, battery life is closely related to vehicle quality. How to reduce weight has become a concern of the automotive industry. Thin-walling is one of the solutions for reducing vehicle weight. On the premise of meeting performance requirements, the wall thickness of the product can be reasonably reduced to achieve the purpose of reducing weight and reducing costs. In addition, production capacity can be increased by developing technology and costs can be reduced by shortening the injection molding cycle.

[0003] Warping is a defect of plastic parts caused by uneven internal stress. The causes of warping are uneven shrinkage, uneven orientation and uneven cooling. Thin-walled products generally improve their mechanical properties by local thickening. Uneven shrinkage due to uneven wall thickness leads to warping of the product.

[0004] For example, a positioning tool for automobile injection molding processing with application number CN202221078654.2 includes a protective box, the four corners of the lower end of the protective box are fixedly installed with a base, the middle part of the upper end of the protective box is interspersed with a steering mechanism, and the lower part of the steering mechanism is located in the protective box, a transmission mechanism is fixedly installed in the protective box, and the transmission mechanism is connected to the steering mechanism in a transmission manner. A plurality of positioning mechanisms are arranged in the steering mechanism, and the plurality of positioning mechanisms are arranged in a ring array. The positioning tool for automobile injection molding processing described in the utility model clamps and fixes the plastic nylon sleeve through two clamping blocks that cooperate with each other, and the fixing is firm, which improves the stability during the processing process, and can fix plastic nylon sleeves of different diameters, and has strong versatility. However, the number of gates of the automobile nylon plastic injection molding is small, and the position distribution is uneven, which has a great influence on the deformation degree of the injection molding, and the temperature of the mold cannot be changed, resulting in uneven cooling speed of the injection molding, which will also form uneven shrinkage of the injection molding. This shrinkage difference leads to the generation of bending moment and causes the injection molding to warp. Therefore, in view of this, the existing structural deficiencies are studied and improved, and a thin-walled, low-warpage nylon plastic injection molding part for automobiles is proposed. Utility Model Content

[0005] The utility model aims to provide a thin-walled low-warpage nylon plastic injection molded part for automobiles to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thin-walled, low-warpage nylon plastic injection molding part for automobiles, comprising a base and a support rod, the top of the base is fixedly connected to the support rod, and the top of the support rod is fixedly connected to a support plate, one side of the support plate is fixedly connected to a liquid storage tank, and the bottom of the liquid storage tank is provided with multiple groups of gates, and one side of the support plate is fixedly connected to a moving mechanism.

[0007] Preferably, the moving mechanism includes a fixed frame fixedly connected to one side of the support plate, and a driving rod is arranged inside the fixed frame, a moving block is movably connected to the outside of the driving rod, and a driver is fixedly connected to the top of the driving rod.

[0008] Preferably, a fixing block is fixedly connected to the top of the base, and a push rod is fixedly connected to one side of the fixing block.

[0009] Preferably, one side of the push rod is fixedly connected to a limit plate, and the fixed block and the limit plate are distributed in parallel.

[0010] Preferably, a model is movably connected to one side of the limiting plate, and a groove is provided inside the model.

[0011] Preferably, the bottom of the model is movably connected to a heating block, and the bottom of the heating block is fixedly connected to a base.

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

[0013] 1. The utility model arranges multiple groups of gates at the bottom of the liquid storage tank by setting gates and heating blocks. The number of traditional gates is small and the position distribution is uneven, which has a great influence on the deformation degree of the injection molded parts. In addition, the temperature of the mold cannot be changed, resulting in uneven cooling speed of the injection molded parts and uneven shrinkage of the injection molded parts. This shrinkage difference leads to the generation of bending moment and causes the injection molded parts to warp. The use of multiple groups of gates can shorten the flow ratio of the plastic, thereby making the material density in the mold cavity more uniform and the shrinkage more uniform. At the same time, the entire injection molded part can be filled under a smaller injection pressure, and the smaller injection pressure can reduce the molecular orientation tendency of the plastic and reduce its internal stress, thereby reducing the deformation of the injection molded parts. By changing the temperature of the mold by the heating block, the intrinsic performance and apparent quality of the injection molded parts can be improved;

[0014] 2. The utility model uses the setting of the moving mechanism and the limit plate to drive the automatic liquid storage tank for pouring through the driving rod, thereby reducing the distance between the gate and the internal groove of the model, preventing bubbles from appearing when the nylon plastic raw material enters the groove, and affecting the subsequent injection molding. The limit plate can fix different models to prevent the model from moving during the pouring process and the inaccurate pouring angle of the gate. At the same time, different models can be replaced to produce different types of injection molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A side view structural schematic diagram of;

[0017] Figure 3 It is a schematic diagram of the novel structure of the practical moving mechanism 5;

[0018] Figure 4 It is a schematic diagram of the structure of the model 10 of the present utility model.

[0019] In the figure: 1. base; 2. support rod; 3. support plate; 4. liquid storage tank; 5. gate; 6. moving mechanism; 601. fixed frame; 602. driving rod; 603. moving block; 604. driver; 7. fixed block; 8. push rod; 9. limit plate; 10. model; 11. groove; 12. heating block. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figure 1-Figure 2 As shown, a thin-walled, low-warpage nylon plastic injection molded part for automobiles comprises a base 1 and a support rod 2, the top of the base 1 is fixedly connected to the support rod 2, and the top of the support rod 2 is fixedly connected to a support plate 3, one side of the support plate 3 is fixedly connected to a liquid storage tank 4, and a plurality of groups of gates 5 are arranged at the bottom of the liquid storage tank 4, one side of the support plate 3 is fixedly connected to a moving mechanism 6, the base 1 is connected to the support plate 3 through the support rod 2, the base 1 and the support rod 2 are symmetrically distributed, and the liquid storage tank 4 stores nylon plastic raw materials, which drives the gate 5 at the bottom of the liquid storage tank 4 to be poured.

[0022] like Figure 3-Figure 4 As shown, the moving mechanism 6 includes a fixed frame 601 fixedly connected to one side of the support plate 3, and a driving rod 602 is arranged inside the fixed frame 601, and a moving block 603 is movably connected to the outside of the driving rod 602, and a driver 604 is fixedly connected to the top of the driving rod 602, and a movable groove is opened inside the fixed frame 601, and the sliding groove inside the movable groove is consistent with the sliders on both sides of the moving block 603. The driver 604 provides power for the driving rod 602, and the driving rod 602 drives the moving block 603 to move up and down.

[0023] Furthermore, a fixed block 7 is fixedly connected to the top of the base 1, and a push rod 8 is fixedly connected to one side of the fixed block 7, and one side of the push rod 8 is fixedly connected to a limiting plate 9. The fixed block 7 and the limiting plate 9 are distributed in parallel. The push rod 8 is an electric push rod 8, and the push rod 8 can control the distance between the limiting plates 9 according to the size of the model 10.

[0024] Furthermore, a model 10 is movably connected to one side of the limiting plate 9, and a groove 11 is provided inside the model 10. The model 10 can be replaced at will, and different grooves 11 facilitate the production of injection molded parts with different types and shapes.

[0025] Furthermore, the bottom of the model 10 is movably connected to a heating block 12, and the bottom of the heating block 12 is fixedly connected to the base 1, and one side of the heating block 12 is fixedly connected to an adjustment button, which can control the temperature at which the heating block 12 heats the model 10.

[0026] Working principle: When using the thin-walled low-warpage nylon plastic injection molding parts for automobiles, first place the base 1 in a suitable position, and the support rod 2 connects the support plate 3 to the base 1. The liquid storage tank 4 on one side of the support plate 3 can store nylon plastic raw materials, and place the model 10 on the upper end of the base 1, and start the push rod 8 on one side of the fixed block 7, so that the limit plate 9 at one end of the push rod 8 fixes the model 10, and then the fixed frame 601 inside the moving mechanism 6 fixes the driving rod 602, and the driver 604 causes the driving rod 602 to drive the moving block 603 to move downward, and the liquid storage tank 4 on one side of the moving block 603 drives the bottom gate 5 to pour the groove 11 inside the model 10, and finally a nylon plastic injection molding part is formed. This is the working principle of the thin-walled low-warpage nylon plastic injection molding parts for automobiles.

Claims

1. A thin-walled, low-warpage nylon plastic injection molded part for automobiles, comprising a base (1) and a support rod (2), characterized in that: The top of the base (1) is fixedly connected to a support rod (2), and the top of the support rod (2) is fixedly connected to a support plate (3), one side of the support plate (3) is fixedly connected to a liquid storage tank (4), and the bottom of the liquid storage tank (4) is provided with a plurality of groups of gates (5), and one side of the support plate (3) is fixedly connected to a moving mechanism (6).

2. The thin-walled, low-warpage nylon plastic injection molded part for automobiles according to claim 1, characterized in that: The moving mechanism (6) comprises a fixed frame (601) fixedly connected to one side of the support plate (3), and a driving rod (602) is arranged inside the fixed frame (601), a moving block (603) is movably connected to the outside of the driving rod (602), and a driver (604) is fixedly connected to the top of the driving rod (602).

3. The thin-walled, low-warpage nylon plastic injection molded part for automobiles according to claim 1, characterized in that: A fixing block (7) is fixedly connected to the top of the base (1), and a push rod (8) is fixedly connected to one side of the fixing block (7).

4. The thin-walled, low-warpage nylon plastic injection molded part for automobiles according to claim 3, characterized in that: One side of the push rod (8) is fixedly connected to a limiting plate (9), and the fixed block (7) and the limiting plate (9) are distributed in parallel.

5. The thin-walled low-warpage nylon plastic injection molded part for automobiles according to claim 4, characterized in that: A model (10) is movably connected to one side of the limiting plate (9), and a groove (11) is provided inside the model (10).

6. The thin-walled, low-warpage nylon plastic injection molded part for automobiles according to claim 5, characterized in that: The bottom of the model (10) is movably connected to a heating block (12), and the bottom of the heating block (12) is fixedly connected to a base (1).

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