Automobile grille die with air trapping prevention cavity structure

Abstract

The utility model provides an automobile grille mould with an anti-air trapping cavity structure, which comprises a lower mounting block, an upper mounting block and a pouring nozzle, a lower mould seat is fixedly mounted at the top end of the lower mounting block, an upper mould seat is fixedly mounted at the bottom end of the upper mounting block, a glue injection port is formed in the top end of the upper mounting block, and the pouring nozzle is fixedly mounted on the lower mould seat. A glue injection opening is formed in the upper mold base, a pouring nozzle is connected into the glue injection opening in a nested mode, a pouring runner is formed in the upper mold base, bent grooves are formed in the two sides of the pouring runner, and an annular heating assembly is arranged on the inner wall of the pouring runner. According to the automobile grille mold, through the bent groove formed in the pouring runner, when a glue solution passes through the pouring runner, the glue solution firstly flows towards the upper runner and then flows downwards, the problem of bubbles generated by inflation of the glue solution and the side wall of the pouring runner is solved, and the product quality of automobile grille pouring is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile grille processing, and relates to automobile grille mould with air trapping type cavity structure. BACKGROUND

[0002] The automobile grille is an important component part of the automobile, and effectively protects the parts in the engine compartment, such as the water tank and the engine, from being impacted by external objects, and provides necessary air for the engine to ensure normal operation. The current automobile grille is generally a plastic part, and is mainly formed by an automobile grille injection mould during production.

[0003] During use of the current automobile grille injection mould, it is found that the glue solution flows to the mould cavity through the pouring runner of the automobile grille mould, and the glue solution is easily impacted against the side wall of the pouring runner due to different directions of flow, thereby causing air bubbles, and affecting the product quality of the automobile grille. Therefore, the automobile grille mould with the air trapping type cavity structure is designed to solve the above technical problems. SUMMARY

[0004] The utility model discloses a purpose of providing automobile grille mould with air trapping type cavity structure to solve the problem that glue solution is impacted against the side wall of the pouring runner due to different directions of flow, thereby causing air bubbles.

[0005] The utility model discloses a purpose of providing automobile grille mould with air trapping type cavity structure to solve the problem that glue solution is impacted against the side wall of the pouring runner due to different directions of flow, thereby causing air bubbles.

[0006] In the automobile grille mould with the air trapping type cavity structure, the bend groove is integrally formed with the pouring runner, and the bend groove is upwardly curved.

[0007] In the automobile grille mould with the air trapping type cavity structure, the annular heating assembly comprises an annular electric heating pipe, the bottom of the pouring runner is provided with an annular cavity, the middle part of the annular cavity is fixedly provided with a flow channel communication connector pipe, and the surface of the flow channel communication connector pipe is woundly connected with the annular electric heating pipe.

[0008] In the automobile grille mould with the air trapping type cavity structure, the pouring nozzle is provided with a pipe connector at the discharging position, the pipe connector is inserted into the pouring runner, and the connection position of the pipe connector and the pouring runner is provided with a sealing assembly.

[0009] In the automobile grille mold with the air type cavity structure of preventing air being trapped above, the sealing assembly comprises a plurality of sealing air bags, the surface of the insertion pipe is nested with the plurality of sealing air bags, and the air inlet ends of the plurality of sealing air bags are connected with the air pipe through the multi-way connection.

[0010] In the automobile grille mold with the air type cavity structure of preventing air being trapped above, one side of the upper mounting block is provided with a mounting groove, a small air pump is fixedly installed in the mounting groove, the air inlet end of the small air pump is fixedly connected with one end of the air pipe, an electromagnetic valve is fixedly installed in the air pipe, and a plurality of air holes are formed in the side surface of the mounting groove.

[0011] Compared with the prior art, the automobile grille mold with the air type cavity structure of preventing air being trapped has the advantages that:

[0012] 1. The automobile grille mold is provided with a bent groove at the pouring runner, so that the glue solution first flows upward in the pouring runner and then flows downward when the glue solution passes through the pouring runner, the problem of air bubbles generated by the glue solution and the side wall of the pouring runner is reduced, and the product quality of the automobile grille pouring is improved.

[0013] 2. The pouring nozzle and the pouring port of the automobile grille injection mold are inserted into the pouring runner through the insertion pipe, and the sealing assembly is arranged, so that the sealing property of the connection position of the pouring nozzle is effectively improved, and the problem of glue overflow is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structure schematic view of the automobile grille mold with the air type cavity structure of preventing air being trapped.

[0015] Figure 2 is a sectional view of the automobile grille mold with the air type cavity structure of preventing air being trapped.

[0016] Figure 3 is a sectional view of the automobile grille mold with the air type cavity structure of preventing air being trapped. Figure 2 is an enlarged view of part A of the automobile grille mold with the air type cavity structure of preventing air being trapped.

[0017] Figure 4 is a connection structure schematic view of the pouring nozzle and the pouring port of the automobile grille mold with the air type cavity structure of preventing air being trapped.

[0018] Figure 5 is an enlarged view of part B of the automobile grille mold with the air type cavity structure of preventing air being trapped. Figure 4

[0019] ​In the diagram, 1. Lower mounting block; 2. Upper mounting block; 3. Lower mold base; 4. Upper mold base; 5. Injection port; 6. Sprue nozzle; 7. Runner connecting pipe; 8. Sprue runner; 9. Bend; 10. Annular cavity; 11. Annular electric heating tube; 12. Insert tube; 13. Sealing airbag; 14. Mounting groove; 15. Air hole; 16. Small air pump; 17. Solenoid valve. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] like Figures 1-5 As shown, the automobile grille mold with an anti-trapping air cavity structure of this utility model includes a lower mounting block 1, an upper mounting block 2, and a pouring nozzle 6. A lower mold base 3 is fixedly installed at the top of the lower mounting block 1, and an upper mold base 4 is fixedly installed at the bottom of the upper mounting block 2. A glue injection port 5 is opened at the top of the upper mounting block 2, and a pouring nozzle 6 is nested inside the glue injection port 5. A pouring channel 8 is opened inside the upper mold base 4, and curved grooves 9 are provided on both sides of the pouring channel 8. An annular heating component is provided on the inner wall of the pouring channel 8.

[0022] Specifically, the curved groove 9 set at the gating channel 8 of the automotive grille mold causes the adhesive to flow upward first and then downward when it passes through the gating channel 8. This reduces the problem of air bubbles caused by air filling between the adhesive and the side wall of the gating channel 8, and improves the product quality of automotive grille casting.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the automobile grille mold of this utility model has an anti-trapping air cavity structure, with the curved groove 9 and the pouring channel 8 integrally formed, and the curved groove 9 is curved upward.

[0024] Specifically, by setting the curved groove 9, when the adhesive flows into the pouring channel 8, the adhesive first flows upward through the curved groove 9 and then flows downward, which replaces the traditional method of the adhesive directly impacting the side wall of the pouring channel 8 and then flowing downward. This avoids the adhesive impacting the side wall of the pouring channel 8 and generating air bubbles, which would otherwise be inside the car grille and improve the product quality of the car grille.

[0025] The annular heating assembly includes an annular electric heating tube 11, an annular cavity 10 is provided at the bottom of the casting channel 8, a channel connecting pipe 7 is fixedly provided in the middle of the annular cavity 10, and the annular electric heating tube 11 is wound and connected to the surface of the channel connecting pipe 7.

[0026] Specifically, the flow channel communication connector 7 can ensure the smoothness of the entire pouring flow channel 8, the surface of the flow channel communication connector 7 is wound with the annular electric heating pipe 11, the flow channel communication connector 7 can be heated by the annular electric heating pipe 11, so that the glue solution inside is secondarily heated, and the glue solution in a molten state flows into the mold cavity, the annular electric heating pipe 11 is a copper pipe, and the power supply matched with the annular electric heating pipe 11 is synchronous with the power supply of the injection molding machine.

[0027] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the utility model discloses a car grille mold with a gas trapping cavity structure, a spout 6 is provided with a pipe 12 at the discharging position, the pipe 12 is inserted into the pouring flow channel 8, and a sealing assembly is arranged at the connecting position of the pipe 12 and the pouring flow channel 8.

[0028] The sealing assembly comprises a plurality of sealing air bags 13, the surface of the pipe 12 is nested with the plurality of sealing air bags 13, and the air inlet ends of the plurality of sealing air bags 13 are connected with an air pipe through a plurality of passages.

[0029] Specifically, the plurality of sealing air bags 13 can be synchronously inflated and deflated through the plurality of passages, and the synchronous expansion and contraction of the sealing air bags 13 can be realized.

[0030] A mounting groove 14 is formed on one side of the upper mounting block 2, and a small air pump 16 is fixedly installed in the mounting groove 14, the air inlet end of the small air pump 16 is fixedly connected with one end of the air pipe, an electromagnetic valve 17 is fixedly installed in the air pipe, and a plurality of air holes 15 are formed in the side surface of the mounting groove 14.

[0031] Specifically, the small air pump 16 and the electromagnetic valve 17 can be matched to inflate the sealing air bags 13, the sealing air bags 13 are inflated and expanded, the surfaces of the sealing air bags 13 are respectively in contact with the inner wall of the pouring flow channel 8 and the surface of the pipe 12, and the sealing performance of the connecting position of the pipe 12 and the pouring flow channel 8 is improved, when the injection molding is completed, the electromagnetic valve 17 opens to discharge the gas in the sealing air bags 13, and the separation between the spout 6 and the pouring flow channel 8 is facilitated.

[0032] It should be noted that the inflation pressure of the sealing air bags 13 can be monitored by an external pressure sensor, and the inflation is stopped when the set pressure is reached, and the specific pressure value is determined by debugging during actual work injection, the small air pump 16 and the electromagnetic valve 17 used in the utility model are all purchased products on the market, and the utility model is only used here without improvement, and the specific working principle will not be described here.

[0033] In the embodiment, when the automobile grille is injected by using the automobile grille injection mold, the injection mold is assembled with the injection molding machine first, the lower mold base 3 and the upper mold base 4 are closed during injection, at this time, the pouring nozzle 6 is inserted into the inside of the pouring runner 8, and the small air pump 16 operates to inflate the sealing air bag 13, the sealing air bag 13 is inflated and abuts against the outer surface of the pouring runner 8 and the insertion pipe 12 respectively, the sealing property of the connection is improved, then the glue solution flows forward through the pouring runner 8, when flowing to the curved groove 9, the glue solution flows upward first, and then flows downward, the problem of air bubbles caused by the impact between the glue solution and the side wall of the pouring runner 8 is avoided, and the flow channel communication connecting pipe 7 is heated by the annular electric heating pipe 11 during the downward flowing of the glue solution, so that the glue solution in the molten state flows into the mold cavity.

[0034] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. The specific embodiments described in the specification are only illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the range defined by the appended claims.

Claims

1. A car grille mold with an anti-trapping air cavity structure, comprising a lower mounting block (1), an upper mounting block (2), and a pouring nozzle (6), wherein a lower mold base (3) is fixedly mounted on the top end of the lower mounting block (1), and an upper mold base (4) is fixedly mounted on the bottom end of the upper mounting block (2), characterized in that, The top of the upper mounting block (2) is provided with a glue injection port (5), and a pouring nozzle (6) is nested inside the glue injection port (5). The upper mold base (4) is provided with a pouring channel (8), and curved grooves (9) are provided on both sides of the pouring channel (8). An annular heating component is provided on the inner wall of the pouring channel (8).

2. The automotive grille mold with an anti-trapping air cavity structure according to claim 1, characterized in that, The curved groove (9) is integrally formed with the pouring channel (8), and the curved groove (9) is curved upward.

3. The automotive grille mold with an anti-trapping air cavity structure according to claim 1, characterized in that, The annular heating assembly includes an annular electric heating tube (11), and an annular cavity (10) is provided at the bottom of the casting channel (8). A channel connecting pipe (7) is fixedly provided in the middle of the annular cavity (10), and the annular electric heating tube (11) is wound around the surface of the channel connecting pipe (7).

4. The automotive grille mold with an anti-trapping air cavity structure according to claim 1, characterized in that, The outlet of the pouring nozzle (6) is provided with a tube (12), which is inserted into the interior of the pouring channel (8), and a sealing component is provided at the connection between the tube (12) and the pouring channel (8).

5. The automotive grille mold with an anti-trapped air cavity structure according to claim 4, characterized in that, The sealing assembly includes multiple sealing airbags (13), and multiple sealing airbags (13) are nested on the surface of the cannula (12). The air inlet of the multiple sealing airbags (13) is connected to an air tube through a multi-port.

6. The automotive grille mold with an anti-trapping air cavity structure according to claim 1, characterized in that, The upper mounting block (2) has a mounting groove (14) on one side. A small air pump (16) is fixedly installed inside the mounting groove (14). The air inlet of the small air pump (16) is fixedly connected to one end of the air pipe. A solenoid valve (17) is fixedly installed inside the air pipe. Multiple air holes (15) are opened on the side of the mounting groove (14).

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