Foam forming device of injection molding machine

Abstract

The utility model discloses an injection molding machine foam forming device which comprises a base, the upper end of the base is fixedly connected with two symmetrically-arranged vertical plates, a limiting rod is fixedly connected between the two vertical plates jointly, the two limiting rods are sleeved with a movable plate jointly in a sliding mode, the upper end of the movable plate is fixedly connected with a lower mold, and the lower mold is fixedly connected with an upper mold. A shaking mechanism used for shaking the lower mold is arranged at the upper end of the base and comprises a motor fixedly connected to the upper end of the base, and a protruding block is fixedly connected to the tail end of an output shaft of the motor. Through the arrangement of the shaking mechanism, the vertical rod rotates with the output shaft of the motor as the axis, the movable plate shakes left and right in cooperation with the notch, after materials are injected, the materials in the lower mold are shaken and rapidly dispersed to all parts of the lower mold, and the foaming quality can be greatly improved; and meanwhile, the electric push rod drives the rack to move to finish mold opening and closing operation, and the scalding danger is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of foaming molding molds, in particular to a foaming molding device for an injection molding machine. Background Art

[0002] In terms of injection molding, application technologies such as foam molding, gas-assisted injection molding and water-assisted injection molding and their equipment development are important components of the development of plastics industry and processing technology in recent years. Foam injection molding technology is one of the technologies that is quite popular in the industry. The most noteworthy aspect of this technology is that it can significantly shorten the production cycle and reduce the consumption of raw materials.

[0003] The foaming molding mold is an important component of the foaming injection molding machine. During use, the injection molding machine needs to inject the material into the mold, and obtain the product through foaming in the mold. In the prior art, the traditional foaming molding mold has great defects. For example, during use, the material is injected into the mold by the injection molding machine, and then the mold is closed for foaming after injection. However, the relatively viscous material has poor fluidity. After being injected into the mold, it flows slowly, resulting in the inability to be quickly and evenly dispersed into the mold, thereby affecting the foaming quality. Therefore, the utility model proposes a foaming molding device for an injection molding machine. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an injection molding machine foaming molding device. The utility model sets a shaking mechanism so that the vertical rod rotates with the output shaft of the motor as the axis, and cooperates with the notch to make the movable plate shake left and right. After the material is injected, the material in the lower mold is shaken to quickly disperse it to various parts of the lower mold, which can greatly improve the foaming quality. At the same time, the electric push rod can drive the movement of the rack to complete the mold opening and closing operations, avoiding the risk of scalding.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The foaming molding device of the injection molding machine includes a base, the upper end of the base is fixedly connected to two symmetrically arranged vertical plates, a limiting rod is fixedly connected between the two vertical plates, a movable plate is slidably sleeved on the two limiting rods, the upper end of the movable plate is fixedly connected to a lower mold, and the upper end of the base is provided with a shaking mechanism for shaking the lower mold, the shaking mechanism includes a motor fixedly connected to the upper end of the base, the end of the output shaft of the motor is fixedly connected to a protrusion, and the upper end of the protrusion is fixedly connected to the vertical rod.

[0007] Preferably, two symmetrically arranged fixed blocks are fixedly connected to the rear wall of the lower mold, a rotating rod is rotatably connected between the two fixed blocks, two symmetrically arranged L-shaped plates are fixedly sleeved on the rotating rod, and the ends of the two L-shaped plates are fixedly connected to an upper mold that matches the lower mold.

[0008] Preferably, a mounting block is fixedly connected to the side wall of the lower mold, an electric push rod is fixedly connected to the side wall of the mounting block, and a rack is fixedly connected to the telescopic end of the electric push rod.

[0009] Preferably, the end of the rotating rod passes through one of the fixed blocks, and the end of the rotating rod is fixedly sleeved with a gear meshing with the rack.

[0010] Preferably, a notch is provided at the lower end of the movable plate, and the vertical rod is inserted into the notch and slidably connected thereto.

[0011] Preferably, the side walls at both ends of the movable plate are elastically connected to the inner wall of the vertical plate on the same side through springs.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. By setting a shaking mechanism, the output shaft of the driving motor rotates, driving the convex block to rotate, so that the vertical rod rotates with the output shaft of the motor as the axis, and the movable plate shakes left and right in coordination with the notch. After the material is injected, the material in the lower mold is shaken to quickly disperse it to various parts of the lower mold, which can greatly improve the foaming quality.

[0014] 2. By setting up an electric push rod, a rack and a gear, the telescopic end of the electric push rod drives the rack to move, which can rotate the gear meshing with it, prompting the rotating rod to drive the upper mold to rotate, completing the mold opening and closing operations, without manual mold opening and closing, avoiding the risk of scalding, and improving the safety of the device when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the foaming molding device of the injection molding machine proposed in the utility model;

[0016] Figure 2 This is a bottom view of the foaming molding device for the injection molding machine proposed by the utility model;

[0017] Figure 3 It is a cross-sectional view of the foaming molding device of the injection molding machine proposed by the utility model;

[0018] Figure 4 for Figure 2 A magnified view of the structure at A;

[0019] Figure 5 for Figure 1Enlarged view of the structure at B in the figure.

[0020] In the figure: 1 base, 2 vertical plate, 3 moving plate, 4 limit rod, 5 upper mold, 6 lower mold, 7 spring, 8 notch, 9 vertical rod, 10 protrusion, 11 motor, 12 fixed block, 13 rotating rod, 14 L-shaped plate, 15 gear, 16 rack, 17 electric push rod, 18 mounting block. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0022] Reference Figure 1-5 The foaming molding device of the injection molding machine comprises a base 1, the upper end of the base 1 is fixedly connected to two symmetrically arranged vertical plates 2, the two vertical plates 2 are commonly fixedly connected to a limit rod 4, a movable plate 3 is slidably sleeved on the two limit rods 4, the upper end of the movable plate 3 is fixedly connected to a lower mold 6, and the upper end of the base 1 is provided with a shaking mechanism for shaking the lower mold 6. The shaking mechanism comprises a motor 11 fixedly connected to the upper end of the base 1, a protrusion 10 is fixedly connected to the end of the output shaft of the motor 11, and a vertical rod 9 is fixedly connected to the upper end of the protrusion 10. A notch 8 is opened at the lower end of the movable plate 3, and the vertical rod 9 is inserted in the notch 8 and slidably connected thereto. The side walls at both ends of the movable plate 3 are elastically connected to the inner walls of the vertical plates 2 on the same side by springs 7. The vertical rod 9 is non-coaxial with the output shaft of the motor 11. The setting of the spring 7 can support and limit the movable plate 3, and can effectively buffer the movable plate 3.

[0023] In the utility model, two symmetrically arranged fixed blocks 12 are fixedly connected to the rear wall of the lower mold 6, a rotating rod 13 is rotatably connected between the two fixed blocks 12, two symmetrically arranged L-shaped plates 14 are fixedly sleeved on the rotating rod 13, and the ends of the two L-shaped plates 14 are fixedly connected to the upper mold 5 that matches the lower mold 6, and a sealing ring is provided at the junction of the upper mold 5 and the lower mold 6, which can improve the sealing effect of the device and avoid material leakage during shaking.

[0024] In the utility model, a mounting block 18 is fixedly connected to the side wall of the lower mold 6, an electric push rod 17 is fixedly connected to the side wall of the mounting block 18, a telescopic end of the electric push rod 17 is fixedly connected to a rack 16, an end of a rotating rod 13 passes through one of the fixed blocks 12, and an end of the rotating rod 13 is fixedly sleeved with a gear 15 meshing with the rack 16, the extension and contraction of the telescopic end of the electric push rod 17 can drive the rack 16 to move back and forth, drive the rotating rod 13 to rotate, and complete the mold opening and closing operations, without the need for manual mold opening and closing, avoiding the risk of scalding, and improving the safety of the device when in use.

[0025] When the utility model is used, the telescopic end of the electric push rod 17 is driven to retract, driving the rack 16 to move, driving the gear 15 meshing therewith to rotate, driving the rotating rod 13 to rotate, so that the L-shaped plate 14 rotates with the rotating rod 13 as the axis, driving the upper mold 5 to rotate, completing the mold opening operation, and using the injection molding machine to inject the foaming raw material into the lower mold 6, driving the telescopic end of the electric push rod 17 to extend, pushing the rack 16 to move, driving the gear 15 to rotate, and completing the mold closing operation. After the mold closing is completed, the output shaft of the driving motor 11 is rotated, driving the convex block 10 to rotate, driving the vertical rod 9 to rotate with the output shaft of the motor 11 as the axis, so that the vertical rod 9 slides in the notch 8, and pushing the moving plate 3 to slide on the limiting rod 4, realizing the left and right shaking of the moving plate 3 and the lower mold 6, which can quickly disperse the foaming material in the lower mold 6, so that the material is evenly distributed in the mold cavity of the lower mold 6, which can improve the foaming effect and reduce the defective rate.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foaming molding device for an injection molding machine, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to two symmetrically arranged vertical plates (2), a limiting rod (4) is fixedly connected between the two vertical plates (2), a movable plate (3) is slidably sleeved on the two limiting rods (4), the upper end of the movable plate (3) is fixedly connected to a lower mold (6), and the upper end of the base (1) is provided with a shaking mechanism for shaking the lower mold (6), the shaking mechanism comprises a motor (11) fixedly connected to the upper end of the base (1), a protrusion (10) is fixedly connected to the end of the output shaft of the motor (11), and the upper end of the protrusion (10) is fixedly connected to the vertical rod (9).

2. The foaming molding device of the injection molding machine according to claim 1, characterized in that: Two symmetrically arranged fixed blocks (12) are fixedly connected to the rear wall of the lower mold (6); a rotating rod (13) is rotatably connected between the two fixed blocks (12); two symmetrically arranged L-shaped plates (14) are fixedly sleeved on the rotating rod (13); and the ends of the two L-shaped plates (14) are fixedly connected to an upper mold (5) that matches the lower mold (6).

3. The foaming molding device of the injection molding machine according to claim 2, characterized in that: A mounting block (18) is fixedly connected to the side wall of the lower mold (6), an electric push rod (17) is fixedly connected to the side wall of the mounting block (18), and a rack (16) is fixedly connected to the telescopic end of the electric push rod (17).

4. The foaming molding device of the injection molding machine according to claim 3, characterized in that: The end of the rotating rod (13) passes through one of the fixed blocks (12), and the end of the rotating rod (13) is fixedly sleeved with a gear (15) meshing with a rack (16).

5. The foaming molding device of the injection molding machine according to claim 4, characterized in that: The lower end of the movable plate (3) is provided with a notch (8), and the vertical rod (9) is inserted into the notch (8) and slidably connected thereto.

6. The foaming molding device of the injection molding machine according to claim 5, characterized in that: The side walls at both ends of the movable plate (3) are elastically connected to the inner wall of the vertical plate (2) on the same side via springs (7).

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