Sliding block glue feeding structure of plastic mould

Abstract

The utility model discloses a slide block glue feeding structure of a plastic mould, which comprises a diving gate assembly and a slide block of the mould, the diving gate assembly comprises a diving port and a runner, the runner is arranged in an upper mould of the mould, the diving port is arranged in the slide block, and when the mould is closed and the slide block enters a core, the runner is arranged in the slide block. The diving opening is communicated with a cavity of the injection mold, a connecting section is arranged between the diving opening and the runner, the end, away from the cavity, of the diving opening is communicated with the end, located in the mold, of the runner through the connecting section, and the connecting section is vertically arranged; the diving opening is obliquely arranged relative to the horizontal plane, and the included angle between the diving opening and the connecting section is an obtuse angle. According to the utility model, the arrangement of cold runners is reduced, the length of the whole runner is shortened, and the forming period is shortened, so that the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic molds, and in particular to a plastic mold slider injection structure. Background Technology

[0002] Currently, there are two common approaches to designing mold slide gate injection structures. One is a narrow gate to a cold runner system followed by submersible injection, and the other is a hot nozzle to a cold runner system followed by submersible injection. In the narrow gate to cold runner submersible injection method, the narrow gate guides the molten plastic injected from the injection molding machine into the cold runner, which then enters the mold cavity through the submersible nozzle. In the hot nozzle to cold runner submersible injection structure, the hot nozzle directly injects the high-temperature plastic into the cold runner, which then completes the injection process through the submersible nozzle. However, both of these approaches have significant drawbacks. Due to their relatively complex structure, they increase the risk of mold collisions during mold opening and closing. Moreover, the presence of the cold runner causes the raw material to cool and solidify within the runner, preventing it from being fully utilized for product molding and resulting in material waste. Furthermore, this structure prolongs the injection cooling cycle and forces excessively long holding times, ultimately leading to low production efficiency. Utility Model Content

[0003] In order to shorten the molding cycle and thus improve production efficiency, this utility model provides a plastic mold slider injection structure.

[0004] This utility model provides a technical solution that adopts the following approach:

[0005] A plastic mold slider injection structure includes a submersible gate assembly and a slider integrated into the mold. The submersible gate assembly includes a submersible port and a runner. The runner is disposed within the upper mold of the mold, and the submersible port is disposed within the slider. During mold closing and when the slider inserts the core, the submersible port communicates with the cavity of the injection mold. A connecting section is provided between the submersible port and the runner. The end of the submersible port away from the cavity is connected to the end of the runner located within the mold through the connecting section. The connecting section is vertically arranged. The submersible port is inclined relative to the horizontal plane, and the included angle between the submersible port and the connecting section is an obtuse angle.

[0006] The inclined submersible nozzle reduces the need for cold runners, shortening the overall runner length and reducing molding cycle time, thus improving efficiency. Simultaneously, the vertically positioned connecting section allows the molten plastic in the runner to flow more smoothly to the submersible nozzle under gravity, reducing flow resistance and energy loss, and improving injection molding efficiency. The submersible nozzle's inclination relative to the horizontal plane and its obtuse angle with the connecting section alters the angle and speed of the melt entering the cavity, allowing the molten plastic to fill the cavity more efficiently, avoiding jetting, turbulence, and other adverse phenomena. This effectively improves product molding quality, reduces internal defects, lowers scrap rates, and enhances mold versatility, adapting to the injection molding needs of various plastic products.

[0007] Preferably, the angle between the diving port and the connecting section is in the range of 130°-140°.

[0008] Preferably, the angle between the diving port and the connecting section is 135°.

[0009] Preferably, the slider is further provided with a wear-resistant block, the length direction of which is consistent with the sliding direction of the slider.

[0010] Preferably, the mold is further provided with inclined guide pillars, and the slider has clearance holes to avoid the inclined guide pillars.

[0011] During mold opening and closing, the inclined guide pillars drive the slider to perform actions such as core pulling or resetting, following the movement of the mold. The presence of clearance holes prevents interference between the inclined guide pillars and the slider or other components, ensuring the normal operation of the mold, guaranteeing that the slider moves along a predetermined trajectory and direction, and realizing the functions of core pulling and demolding. This ensures that plastic products can be successfully molded, improving production efficiency and product quality.

[0012] In summary, this utility model has the following beneficial technical effects:

[0013] The inclined submersible nozzle reduces the need for cold runners, shortening the overall runner length and reducing molding cycle time, thus improving efficiency. Simultaneously, the vertically positioned connecting section allows the molten plastic in the runner to flow more smoothly to the submersible nozzle under gravity, reducing flow resistance and energy loss, and improving injection molding efficiency. The submersible nozzle's inclination relative to the horizontal plane and its obtuse angle with the connecting section alters the angle and speed of the melt entering the cavity, allowing the molten plastic to fill the cavity more efficiently, avoiding jetting, turbulence, and other adverse phenomena. This effectively improves product molding quality, reduces internal defects, lowers scrap rates, and enhances mold versatility, adapting to the injection molding needs of various plastic products. Attached Figure Description

[0014] Figure 1 This is a partial schematic diagram of a plastic mold slider injection structure according to the present invention.

[0015] Figure 2 This is a side view of a plastic mold slider injection structure according to the present invention.

[0016] Explanation of reference numerals in the attached diagram: 1. Slider; 2. Diving port; 3. Flow channel; 4. Connecting section; 5. Product. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below.

[0018] This utility model discloses a plastic mold slider injection structure.

[0019] Reference Figure 1 A plastic mold slider injection structure includes a submersible gate assembly and a slider 1 integrated into the mold. The submersible gate assembly includes a submersible gate 2 and a runner 3. The runner 3 is disposed in the upper mold of the mold, and the submersible gate 2 is disposed in the slider 1. When the mold is closed and the slider 1 inserts the core, the submersible gate 2 is connected to the cavity of the injection mold. A connecting section 4 is provided between the submersible gate 2 and the runner 3. The end of the submersible gate 2 away from the cavity is connected to the end of the runner 3 located in the mold through the connecting section 4. The connecting section 4 is vertically arranged. The submersible gate 2 is inclined relative to the horizontal plane, and the included angle between the submersible gate 2 and the connecting section 4 is an obtuse angle.

[0020] The inclined submersible nozzle 2 reduces the need for a cold runner 3, which helps to shorten the overall length of the runner 3, reducing the molding cycle and thus improving efficiency. Simultaneously, the vertically positioned connecting section 4 allows the molten plastic in the runner 3 to flow more smoothly to the submersible nozzle 2 under gravity, reducing flow resistance and energy loss, and improving injection molding efficiency. The submersible nozzle 2 is inclined relative to the horizontal plane and forms an obtuse angle with the connecting section 4, which can change the angle and speed at which the molten plastic enters the cavity, allowing the molten plastic to fill the cavity in a more efficient manner, avoiding undesirable phenomena such as jetting and turbulence, effectively improving product molding quality, reducing internal defects, lowering the scrap rate, and enhancing the mold's versatility to meet the injection molding production needs of various plastic products.

[0021] Reference Figure 1 as well as Figure 2 In this embodiment, the included angle between the diving port 2 and the connecting section 4 is 130°-140°.

[0022] Reference Figure 1 as well as Figure 2 In this embodiment, the included angle between the diving port 2 and the connecting section 4 is 135°.

[0023] Reference Figure 1 as well as Figure 2 In this embodiment, the slider 1 is also provided with a wear-resistant block, the length direction of which is consistent with the sliding direction of the slider 1.

[0024] Reference Figure 1 as well as Figure 2 In this embodiment, the mold is also provided with an inclined guide post, and the slider 1 has a clearance hole to avoid the inclined guide post.

[0025] During mold opening and closing, the inclined guide post drives the slider 1 to perform actions such as core pulling or resetting as the mold moves. The presence of the clearance hole prevents interference between the inclined guide post and the slider 1 or other components, ensuring the normal operation of the mold and guaranteeing that the slider 1 moves along the predetermined trajectory and direction to realize the functions of core pulling and demolding, thereby ensuring that plastic products can be successfully molded, improving production efficiency and product quality.

[0026] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A plastic mold slider injection structure, characterized in that: The system includes a submersible gate assembly and a slider integrated into the mold. The submersible gate assembly includes a submersible gate and a runner. The runner is located inside the upper mold of the mold, and the submersible gate is located inside the slider. During mold closing and when the slider inserts the core, the submersible gate communicates with the cavity of the injection mold. A connecting section is provided between the submersible gate and the runner. The end of the submersible gate away from the cavity is connected to the end of the runner located inside the mold through the connecting section. The connecting section is vertically arranged. The submersible gate is inclined relative to the horizontal plane, and the included angle between the submersible gate and the connecting section is an obtuse angle.

2. The plastic mold gate structure of claim 1, wherein: The angle between the diving port and the connecting section is in the range of 130°-140°.

3. The plastic mold slide core feed structure of claim 2, wherein: The angle between the diving port and the connecting section is 135°.

4. The plastic mold slide core feed structure of claim 2, wherein: The slider is also provided with a wear-resistant block, the length direction of which is consistent with the sliding direction of the slider.

5. The plastic mold slide core feed structure of claim 4, wherein: The mold is also provided with inclined guide pillars, and the slider has clearance holes to avoid the inclined guide pillars.

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