Mold filling nozzle mechanism

Abstract

The utility model discloses a mold filling nozzle mechanism which comprises a branch runner, a sprue disc and a straight runner, a round hole in the top end of a first heat conduction sealing plate is connected with the straight runner through a nut, one end of the straight runner is connected with the sprue disc, one side of the top end of the first heat conduction sealing plate is connected with a hot air flow guide pipe in a penetrating mode, and an embedded air bag is arranged at one end of the hot air flow guide pipe. An exhaust column is arranged at the top end of the embedded airbag; an air cap head is mounted at the top end of the exhaust column; one side of the top end of the first heat conduction sealing plate is connected with the hot air flow guide pipe in a puncturing mode, the embedded air bag is arranged at one end of the hot air flow guide pipe, the exhaust column is arranged at the top end of the embedded air bag, and the air cap head is installed at the top end of the exhaust column, so that high-temperature air in the sub-runner can be exhausted; and gas can be prevented from being mingled in molten plastic, so that the quality of a product is ensured.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, and in particular to a mold nozzle mechanism. Background Technology

[0002] A sprue bushing, also called a sprue nozzle, sprue nozzle, or sprue filler, is a component of the flow channel that allows molten plastic material to be injected from the nozzle of an injection molding machine into the mold. It is a metal fitting used to connect the molding die and the injection molding machine.

[0003] Prior art, such as patent application number CN202323497366.8, discloses a sprue sleeve, relating to the field of injection molding tools. It includes an outer shell and an inner sleeve, with a guide channel extending through the outer shell. The inner sleeve is inserted into the guide channel, and the outer shell and inner sleeve are detachably connected. This application has the effect of reducing the production cost of the injection molding process.

[0004] The disadvantage of the above-disclosed sprue sleeve structure is that during the pouring of molten plastic, the gas inside the sprue sleeve cannot be discharged and will become trapped inside the molten plastic, causing defects in the product. To address this, we have designed a mold nozzle mechanism. Utility Model Content

[0005] The purpose of this invention is to provide a mold filling nozzle mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold nozzle mechanism, comprising a runner, a sprue plate, and a direct flow runner. A heat-conducting sealing plate is installed at the top opening of the runner, and a heating wire is installed along the edge contour of the heat-conducting sealing plate. The heat-conducting sealing plate is sealed to the top opening of the runner via the heating wire. The top circular hole of the heat-conducting sealing plate is connected to the direct flow runner via a nut. One end of the direct flow runner is connected to the sprue plate. A hot air flow guide pipe is pierced and connected to one side of the top of the heat-conducting sealing plate. An embedded air bladder is provided at one end of the hot air flow guide pipe. An exhaust column is provided at the top of the embedded air bladder, and an air cap is installed at the top of the exhaust column.

[0007] Preferably, a second heat-conducting sealing plate is provided at the bottom opening of the distribution channel, and a second heating wire is installed along the edge contour of the second heat-conducting sealing plate. The second heat-conducting sealing plate is sealed to the bottom opening of the distribution channel through the second heating wire.

[0008] Preferably, a gate seat is installed on one side of the bottom end of the second heat-conducting sealing plate, the gate seat is provided with a flow channel inside, the top of the flow channel is provided with a bowl-shaped part, the bowl-shaped part is connected to the flow channel, and a ball valve is placed inside the bowl-shaped part.

[0009] Preferably, a second gate seat is fixedly installed at the middle of the bottom end of the second heat-conducting sealing plate, and a hot runner is provided at one end of both the second gate seat and the gate seat.

[0010] Preferably, the outer surface of the embedded airbag is provided with an annular recess, and there are multiple annular recesses, with a sealing gasket installed inside each annular recess.

[0011] Preferably, the ball valve corresponds to the top opening of the guide channel, and the contact area between the ball valve and the top opening of the guide channel is sealed.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] (1) The present invention provides a mold nozzle mechanism by piercing and connecting a hot air flow guide pipe to one side of the top of a heat-conducting sealing plate, setting an embedded air bag at one end of the hot air flow guide pipe, setting an exhaust column at the top of the embedded air bag, and installing an air cap at the top of the exhaust column. This can discharge the high-temperature gas inside the flow channel, and prevent gas from being trapped inside the molten plastic when it is injected, thereby ensuring the quality of the product. By setting a flow channel inside the gate seat, setting a bowl at the top of the flow channel, and setting a ball valve inside the bowl, the high-temperature gas can be prevented from entering the cavity when the molten plastic is poured in. At the same time, when the molten plastic reaches the bowl, the ball valve is lifted by the molten plastic, so that the molten plastic can flow smoothly into the cavity. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the diversion channel of this utility model.

[0016] Figure 3 This is a schematic diagram of the planar structure of the gating seat of this utility model.

[0017] In the diagram: 1. Runner; 2. Heat-conducting seal plate one; 3. Heating wire one; 4. Sprue plate; 5. Straight runner; 6. Hot air duct; 7. Embedded airbag; 8. Exhaust column; 9. Air cap head; 10. Heat-conducting seal plate two; 11. Heating wire two; 12. Sprue seat; 13. Second sprue seat; 14. Hot runner rod; 15. Sealing gasket; 16. Bowl mouth; 17. Runner; 18. Ball valve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides, for example Figure 1-3 The image shows a mold nozzle mechanism;

[0020] Example: The nozzle mechanism includes a flow channel 1, a gating plate 4, and a direct flow channel 5. A heat-conducting sealing plate 2 is installed at the top opening of the flow channel 1. A heating wire 3 is installed along the edge contour of the heat-conducting sealing plate 2. The heat-conducting sealing plate 2 is sealed to the top opening of the flow channel 1 through the heating wire 3. The top round hole of the heat-conducting sealing plate 2 is connected to the direct flow channel 5 through a nut. One end of the direct flow channel 5 is connected to the gating plate 4. A hot air flow guide pipe 6 is pierced and connected to one side of the top of the heat-conducting sealing plate 2. An embedded air bag 7 is provided at one end of the hot air flow guide pipe 6. An exhaust column 8 is provided at the top of the embedded air bag 7. An air cap head 9 is installed at the top of the exhaust column 8.

[0021] In this scheme, in order to ensure a good temperature and prevent the molten material from cooling when it comes into contact with a cold and hard object, a heat-conducting sealing plate 2 10 is provided at the bottom opening of the flow channel 1. A heating wire 2 11 is installed on the edge contour of the heat-conducting sealing plate 2 10. The heat-conducting sealing plate 2 10 is sealed to the bottom opening of the flow channel 1 through the heating wire 2 11.

[0022] Furthermore, in order to ensure the airbag is sealed to the mold plate, the outer surface of the airbag 7 is provided with annular recesses, and there are multiple annular recesses, with a sealing gasket 15 installed inside each annular recess.

[0023] Example 2: The nozzle mechanism includes a flow channel 1, a gating plate 4, and a direct flow channel 5. A heat-conducting sealing plate 2 is installed at the top opening of the flow channel 1. A heating wire 3 is installed along the edge contour of the heat-conducting sealing plate 2. The heat-conducting sealing plate 2 is sealed to the top opening of the flow channel 1 through the heating wire 3. The top circular hole of the heat-conducting sealing plate 2 is connected to the direct flow channel 5 through a nut. One end of the direct flow channel 5 is connected to the gating plate 4. A hot air flow guide pipe 6 is pierced and connected to one side of the top of the heat-conducting sealing plate 2. One end of the hot air flow guide pipe 6... An embedded airbag 7 is provided, and an exhaust column 8 is provided at the top of the embedded airbag 7. An air cap head 9 is installed at the top of the exhaust column 8. A gate seat 12 is installed on one side of the bottom end of the heat-conducting sealing plate 10. A guide channel 17 is provided inside the gate seat 12. A bowl-shaped part 16 is provided at the top of the guide channel 17. The bowl-shaped part 16 is connected to the guide channel 17 and a ball valve 18 is placed inside the bowl-shaped part 16. The ball valve 18 corresponds to the top opening of the guide channel 17 and the contact part between the ball valve 18 and the top opening of the guide channel 17 is sealed.

[0024] In order to better guide the molten plastic into the core, a second gate seat 13 is fixedly installed at the middle of the bottom end of the heat-conducting sealing plate 2 10. A hot runner 14 is provided at one end of both the second gate seat 13 and the gate seat 12.

[0025] The advantages of this scheme are: it can prevent high-temperature gas from entering the cavity when the molten plastic is poured in, and when the molten plastic reaches the bowl, the ball valve is lifted by the molten plastic, so that the molten plastic can flow smoothly into the cavity.

[0026] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A mold sprue mechanism, comprising a runner (1), a sprue plate (4), and a direct runner (5), characterized in that, A heat-conducting sealing plate (2) is installed at the top opening of the branch channel (1). A heating wire (3) is installed at the edge contour of the heat-conducting sealing plate (2). The heat-conducting sealing plate (2) is sealed to the top opening of the branch channel (1) through the heating wire (3). The top round hole of the heat-conducting sealing plate (2) is connected to the direct current channel (5) through a nut. One end of the direct current channel (5) is connected to the gating plate (4). A hot air flow guide pipe (6) is pierced and connected to one side of the top of the heat-conducting sealing plate (2). An embedded air bag (7) is provided at one end of the hot air flow guide pipe (6). An exhaust column (8) is provided at the top of the embedded air bag (7). An air cap head (9) is installed at the top of the exhaust column (8).

2. The mold filling nozzle mechanism according to claim 1, characterized in that, A heat-conducting sealing plate two (10) is provided at the bottom opening of the flow channel (1), and a heating wire two (11) is installed on the edge contour of the heat-conducting sealing plate two (10). The heat-conducting sealing plate two (10) is sealed to the bottom opening of the flow channel (1) through the heating wire two (11).

3. The mold filling nozzle mechanism according to claim 2, characterized in that, A sprue seat (12) is installed on one side of the bottom end of the heat-conducting sealing plate (10). A flow channel (17) is provided inside the sprue seat (12). A bowl-shaped part (16) is provided at the top of the flow channel (17). The bowl-shaped part (16) is connected to the flow channel (17) and a ball valve (18) is placed inside the bowl-shaped part (16).

4. The mold filling nozzle mechanism according to claim 2, characterized in that, A second gate seat (13) is fixedly installed at the middle of the bottom end of the second heat-conducting sealing plate (10). A hot runner (14) is provided at one end of both the second gate seat (13) and the gate seat (12).

5. A mold filling nozzle mechanism according to claim 1, characterized in that, The outer surface of the embedded airbag (7) is provided with an annular concave ring, and there are multiple annular concave rings, with a sealing gasket (15) installed inside each annular concave ring.

6. A mold filling nozzle mechanism according to claim 3, characterized in that, The ball valve (18) corresponds to the top opening of the guide channel (17), and the contact area between the ball valve (18) and the top opening of the guide channel (17) is sealed.

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