Injection mold for processing a wind guard

Abstract

The utility model relates to the technical field of wind shield processing, and disclose a kind of injection mold for wind shield processing, including base and fixed plate, model cavity is set up in base, the middle part of base is provided with through slot, the bottom end of fixed plate is provided with mould core, the top of fixed plate is provided with injection assembly, the inside of mould core is fixedly connected with several exhaust pipes, the middle part of mould core is provided with cavity, injection assembly includes four injection channels fixedly connected in the middle part of fixed plate, the top of four injection channels is fixedly connected with feeding pipe, the inner cavity middle part of feeding pipe is provided with conical flow guide block, injection material is injected into model cavity inner cavity from multiple positions by four injection channels simultaneously, effectively improve injection speed, ensure that material can be more evenly distributed in model cavity inner cavity simultaneously, gas generated in high temperature during mould use is discharged through multiple evenly arranged exhaust pipes, avoid that gas influences the product quality of wind shield.

Description

Technical Field

[0001] This utility model relates to the field of windshield processing technology, and more specifically to an injection mold for processing windshields. Background Technology

[0002] Injection molds are an indispensable basic process equipment in modern manufacturing, widely used in machinery, automobiles, electronics, communications, home appliances and other fields. As a key component in various cooling systems, ventilation equipment and home appliances, the wind shield is mainly composed of the upper support, left support, right support and ring assembly, etc., which are fixed by bolts. It has the characteristics of reliable structure and convenient assembly. It usually adopts a split structure. Commonly used plastic materials include LDPE, PP and ABS. Therefore, the wind shield is processed and produced by injection molding.

[0003] The shortcomings of existing technology: Existing injection molds usually adopt a single-channel injection method. Single-channel injection is prone to insufficient and uneven material injection, which affects the quality and integrity of the molded product. At the same time, the existing mold venting system design is insufficient, which may cause problems such as air bubbles or shrinkage defects to be generated inside during the extrusion process of the air shield. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an injection mold for processing a windproof cover, so as to solve the problem that the injection method of the existing mold in the background art is prone to insufficient and uneven material injection, and may also cause air bubbles or shrinkage defects inside the windproof cover during the extrusion process.

[0005] This utility model provides the following technical solution: an injection mold for processing a windproof cover, including a base and a fixing plate fixedly connected to its top. The base has a mold cavity and a through groove in the middle. The bottom of the fixing plate is provided with a mold core and the top of the fixing plate is provided with an injection component. The interior of the mold core is fixedly connected with several exhaust pipes and a cavity is provided in the middle of the mold core.

[0006] The injection assembly includes four injection channels fixedly connected to the middle of the fixed plate. The top ends of the four injection channels are fixedly connected to a feeding pipe, and a tapered guide block is provided in the middle of the inner cavity of the feeding pipe.

[0007] Preferably, the top of the mold core has four injection ports, the positions of the four injection channels correspond to the positions of the injection ports and are connected, and the injection channels are inclined from the feeding pipe toward the injection port.

[0008] Preferably, the inner cavity of the injection channel is connected to the inner cavity of the model cavity through the injection port, and the mold core is movably connected to the inner cavity of the model cavity.

[0009] Preferably, the exhaust pipes are arranged in a ring array, and the positions of the exhaust pipes and the four injection ports are staggered. One end of each exhaust pipe is connected to the inner cavity of the model cavity.

[0010] Preferably, a support frame is fixedly connected to the top of the fixed plate, four forming hydraulic cylinders are fixedly installed at the bottom of the support frame, and the top of the feeding pipe passes through the middle of the support frame.

[0011] Preferably, two connecting blocks are fixedly connected to both ends of the mold core, a guide post is movably connected to the middle of the connecting block, and the extended end of the forming hydraulic cylinder is fixedly connected to the connecting block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model ensures sufficient and uniform injection material by providing an injection assembly. When adding molten injection material, the material is first poured into the inner cavity of the feeding tube. Through the inclination of the conical guide block surface in the inner cavity of the feeding tube, the material flows to the surrounding injection channels. The material flows to the injection port in the inner cavity of the injection channel and is injected into the inner cavity of the mold cavity through the injection port. The four injection channels inject simultaneously, which effectively improves the speed of mold material injection and allows the injection material to be injected from multiple positions at the same time, ensuring that the material can be more evenly distributed in the inner cavity of the mold cavity.

[0014] 2. This utility model uses multiple exhaust pipes arranged in a ring array. During the use of the mold, the high temperature generated inside the mold cavity is discharged through the exhaust pipes, which avoids the compression of a large amount of air during the extrusion process, which would prevent the air from being discharged in time. The evenly distributed exhaust pipes effectively increase the amount of gas discharged from the mold, and prevent the formation of air bubbles in the material during the extrusion molding process, which would affect the flatness of the wind shield surface and the quality of the product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the injection component structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention. Figure 1 .

[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0019] Figure 5 This is a schematic diagram of the overall cross-sectional structure of the present invention. Figure 2 .

[0020] The attached diagram is labeled as follows: 1. Base; 2. Fixing plate; 3. Mold cavity; 4. Through slot; 5. Mold core; 6. Injection assembly; 61. Injection channel; 62. Feeding pipe; 63. Conical guide block; 7. Exhaust pipe; 8. Cavity; 9. Injection port; 10. Support frame; 11. Forming hydraulic cylinder; 12. Connecting block; 13. Guide column. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The injection mold for processing a windproof cover involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] This utility model provides an injection mold for processing windshields, such as... Figure 1 - Figure 5 As shown, the mold includes a base 1 and a fixing plate 2 fixedly connected to its top. The base 1 has a mold cavity 3 and a through groove 4 in the middle. The bottom of the fixing plate 2 is provided with a mold core 5 and the top of the fixing plate 2 is provided with an injection assembly 6. Several vent pipes 7 are fixedly connected inside the mold core 5. The middle of the mold core 5 has a cavity 8, which corresponds to and is connected to the inner cavity of the through groove 4. Since the injection mold is in a high-temperature state during the processing, the cavity 8 and the through groove 4 increase the heat dissipation space and heat dissipation effect of the mold, effectively reducing the cooling time of the mold.

[0023] Furthermore, such as Figure 2 and Figure 3 As shown, the injection assembly 6 includes four injection channels 61 fixedly connected to the middle of the fixed plate 2. The top ends of the four injection channels 61 are fixedly connected to a feeding pipe 62, and a conical guide block 63 is provided in the middle of the inner cavity of the feeding pipe 62.

[0024] Furthermore, such as Figure 2 and Figure 3 As shown, the top of the mold core 5 has four injection ports 9. The positions of the four injection channels 61 correspond to the positions of the injection ports 9 and are connected. The injection channels 61 are inclined from the feeding tube 62 toward the injection ports 9. During processing, the molten injection material is added to the inner cavity of the feeding tube 62. The molten material enters the inner cavity of the injection channel 61 through the feeding tube 62. When the material flows in the inner cavity of the feeding tube 62, it flows toward the injection ports 9 through the inclination of the surface of the conical guide block 63, so that the molten material can accurately enter the inner cavity of the injection channel 61.

[0025] Furthermore, such as Figure 3 and Figure 4 As shown, the inner cavity of the injection channel 61 is connected to the inner cavity of the mold cavity 3 through the injection port 9. The mold core 5 is movably connected to the inner cavity of the mold cavity 3. The four injection ports 9 simultaneously add material to the inner cavity of the mold cavity 3, which effectively improves the injection speed and sufficiency of the material. At the same time, the multiple injection channels 61 are evenly distributed, so that the injection material is injected into the mold cavity 3 from multiple positions at the same time, which can more evenly cover the inner cavity of the mold cavity 3. This avoids the uneven distribution of material in the inner cavity of the mold cavity 3 caused by the use of a single channel feeding method. After the injection material is added, the molten material is formed by the extrusion of the mold core 5 into the inner cavity of the mold cavity 3. After cooling, it is taken out.

[0026] Furthermore, such as Figure 4 and Figure 5 As shown, several exhaust pipes 7 are arranged in a ring array, and the positions of the exhaust pipes 7 and the four injection ports 9 are staggered. One end of the exhaust pipe 7 is connected to the inner cavity of the mold cavity 3. Since the temperature of the molten injection material is high, gas will be generated. The mold core 5 and the mold cavity 3 will compress the gas during the extrusion molding process. The gas during the extrusion process is discharged to the outside through the evenly distributed exhaust pipes 7 to avoid excessive gas causing air bubbles to form in the material during the extrusion process, which would affect the flatness of the surface of the windshield and the product quality after molding.

[0027] Furthermore, such as Figure 1 and Figure 3 As shown, a support frame 10 is fixedly connected to the top of the fixed plate 2, and four forming hydraulic cylinders 11 are fixedly installed at the bottom of the support frame 10. The top of the feeding pipe 62 passes through the middle of the support frame 10.

[0028] Furthermore, such as Figure 3 As shown, two connecting blocks 12 are fixedly connected to both ends of the mold core 5. A guide post 13 is movably connected to the middle of the connecting block 12. The extended end of the forming hydraulic cylinder 11 passes through the fixed plate 2 and is fixedly connected to the connecting block 12. When the material inside the mold cavity 3 needs to be extruded and molded, the forming hydraulic cylinder 11 is activated. The extension of the extended end of the forming hydraulic cylinder 11 drives the connecting block 12 to move downward, so that the mold core 5 impacts the inside of the mold cavity 3, and the injection material inside the mold cavity 3 is extruded and molded. During the up and down movement of the mold core 5, the connecting block 12 moves on the surface of the guide post 13, which guides the movement direction of the mold core 5, effectively improving the stability and accuracy of the extrusion process of the mold core 5, avoiding positional deviation, and affecting the product quality of the shape after the wind shield is formed.

[0029] The working principle of this utility model is as follows: First, the molten injection material is poured into the inner cavity of the feeding pipe 62. The material flows outwards through the inclined surface of the conical guide block 63 within the inner cavity of the feeding pipe 62, allowing the material to enter the inner cavity of the injection channel 61. The injection material in the inner cavity of the injection channel 61 is injected into the inner cavity of the mold cavity 3 through the injection port 9. Multiple injection channels 61 inject simultaneously, effectively improving the injection speed of the mold. Simultaneous injection from multiple injection channels 61 ensures that the material flows more evenly to all positions within the inner cavity of the mold cavity 3, guaranteeing uniform material coverage. After injection, the forming hydraulic cylinder 11 is activated. The extended end of the forming hydraulic cylinder 11 pushes the connecting block 12 to move up and down on the surface of the guide post 13, driving... The mold core 5 is pressed downwards within the mold cavity 3 to complete the extrusion molding of the material. Four hydraulic cylinders 11 push simultaneously, and the connecting block 12 moves on the surface of the guide post 13, guiding the movement direction of the mold core 5. This effectively improves the stability and accuracy of the mold core 5 during the extrusion process, preventing positional deviations that could affect the shape and product quality of the wind shield after molding. During the extrusion process, the gas generated by the high temperature is discharged outwards through the evenly distributed exhaust pipes 7, preventing excessive gas from causing air bubbles in the material during extrusion, which could affect the flatness of the wind shield surface and the product quality after molding. After the wind shield is extruded, the cavity 8 and the through groove 4 increase the heat dissipation space and effect of the mold, effectively reducing the cooling time of the mold.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A kind of wind shield processing injection mold, including base (1) and fixed plate (2) fixedly connected to its top end, model cavity (3) is set on the base (1), it is characterized by: The base (1) has a through groove (4) in the middle, the bottom of the fixing plate (2) is provided with a mold core (5), the top of the fixing plate (2) is provided with an injection component (6), the mold core (5) is fixedly connected to several exhaust pipes (7), and the mold core (5) has a cavity (8) in the middle. The injection assembly (6) includes four injection channels (61) fixedly connected to the middle of the fixed plate (2). The top ends of the four injection channels (61) are fixedly connected to a feeding pipe (62). A conical guide block (63) is provided in the middle of the inner cavity of the feeding pipe (62).

2. The injection mold for processing a windproof cover according to claim 1, characterized in that: The top of the mold core (5) has four injection ports (9), and the positions of the four injection channels (61) correspond to the positions of the injection ports (9) and are connected. The injection channels (61) are inclined from the feeding pipe (62) toward the injection ports (9).

3. The injection mold for processing a windproof cover according to claim 1, characterized in that: The inner cavity of the injection channel (61) is connected to the inner cavity of the model cavity (3) through the injection port (9), and the mold core (5) is movably connected to the inner cavity of the model cavity (3).

4. The injection mold for processing a windproof cover according to claim 1, characterized in that: Several exhaust pipes (7) are arranged in a ring array, and the positions of several exhaust pipes (7) and four injection ports (9) are staggered. One end of the exhaust pipe (7) is connected to the inner cavity of the model cavity (3).

5. The injection mold for processing a windproof cover according to claim 1, characterized in that: The top of the fixed plate (2) is fixedly connected to a support frame (10), and four press-type hydraulic cylinders (11) are fixedly installed at the bottom of the support frame (10). The top of the feeding pipe (62) passes through the middle of the support frame (10).

6. The injection mold for processing a windproof cover according to claim 5, characterized in that: Two connecting blocks (12) are fixedly connected to both ends of the mold core (5). A guide post (13) is movably connected to the middle of the connecting block (12). The extended end of the forming hydraulic cylinder (11) is fixedly connected to the connecting block (12).

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