Indicator lamp body injection molding mold

Abstract

The utility model belongs to the technical field of lamp body molds, and particularly relates to an indicator lamp body injection molding mold which comprises a fixed mold body, a movable mold body is arranged on one side of the fixed mold body, a heat dissipation piece is arranged on one side of the movable mold body, and the heat dissipation piece comprises a first cooling box and a second cooling box. Liquid storage tanks are formed in the first cooling box and the second cooling box, openings are formed in one end of the first cooling box and one end of the second cooling box, and the opening ends of the first cooling box and the second cooling box are attached to each other and then combined to form a complete box body; the heat dissipation piece is arranged, the heat dissipation piece serves as a part of the fixed mold, the mold core is tightly attached to the heat dissipation piece, the heat dissipation piece takes away heat of the mold core and plastic with the help of circulating cooling water, then the purpose of cooling and heat dissipation is achieved, and the heat dissipation piece is simple in structure, convenient to produce and manufacture and convenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of lamp body mold technology, and in particular to an injection molding mold for an indicator light body. Background Technology

[0002] Existing injection molds used to manufacture emergency exit indicator lights involve injecting molten plastic into the mold cavity using an injection molding machine. After pressure holding, cooling, and demolding, the light body is obtained. In terms of cooling methods, complex cooling channels are designed inside the mold, such as annular channels, serpentine channels, or mesh channels, so that cooling water can flow evenly across the mold surface, maximizing contact with the mold and carrying away heat. This cooling structure requires fine machining of the mold body to obtain the cooling channels, which complicates the mold structure and leads to high mold manufacturing difficulty and cost. Utility Model Content

[0003] This utility model proposes an injection molding mold for indicator light bodies to solve the problem that the high precision required for processing the cooling channels in existing molds leads to high difficulty and cost in mold manufacturing.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An injection molding mold for an indicator light body includes a fixed mold body, a movable mold body on one side of the fixed mold body, and a heat dissipation component on one side of the movable mold body. The heat dissipation component includes a first cooling box and a second cooling box. A water outlet pipe is provided on one side of the bottom of the first cooling box, and a water inlet pipe is provided on one side of the top of the second cooling box. A liquid storage tank is provided inside both the first and second cooling boxes. An opening is provided at one end of both the first and second cooling boxes, and the open ends of the first and second cooling boxes are fitted together to form a complete box body.

[0006] A mold core is provided on one side of the heat sink, and a cavity is formed on the surface of the mold core. A pressure block that mates with the cavity is formed on one side of the fixed mold body.

[0007] Preferably, the heat sink has a groove on one side facing the mold core, the mold core is placed in the groove, and the outer wall of the mold core is in close contact with the groove.

[0008] Preferably, a sealing gasket is provided between the first cooling box and the second cooling box, and a buckle plate is provided at both ends of the first cooling box and the second cooling box, and fastening bolts are provided between the two extended ends of the buckle plate and the first cooling box and the second cooling box, respectively.

[0009] Preferably, the first cooling box and the second cooling box are provided with multiple through holes at the location of the groove, a push rod is inserted into one side of the through hole, the extension end of the push rod is provided with a fixed seat, the fixed seat is provided with a telescopic device, and the telescopic end of the telescopic device is connected to the moving mold body.

[0010] Preferably, the outer wall of the moving mold body is provided with a socket, and the outer wall of the fixed mold body is fixed with a positioning rod.

[0011] Preferably, a guide bar is provided on one side of the fixed mold body relative to the pressure block, and both the guide bar and the pressure block are provided with feed holes.

[0012] Preferably, a heat sink is provided between the moving mold body and the heat sink.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] In this application, the heat sink is part of the fixed mold. A mold core is set on one side of the heat sink, and the mold core is closely fitted to the heat sink. During the injection molding process, after the molten plastic is injected into the cavity of the mold core, the heat sink carries away the heat of the mold core and the plastic with the help of circulating cooling water, thereby achieving the purpose of cooling and heat dissipation. The heat sink set in this application uses a combined box structure as a heat absorption structure and a carrier for the circulation of coolant. The structure is simple and easy to manufacture, and it is also easy to disassemble and assemble, which is conducive to its use and thus helps to reduce the mold manufacturing cost. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 Explosion of the heat sink of this utility model Figure 1 ;

[0019] Figure 4 Explosion of the heat sink of this utility model Figure 2 ;

[0020] Figure 5 This is a schematic diagram of the structure of the heat dissipation component and the mold core of this utility model;

[0021] Figure 6 The three-dimensional form of the fixed mold body of this utility model Figure 1 ;

[0022] Figure 7 The three-dimensional form of the fixed mold body of this utility model Figure 2 ;

[0023] In the diagram: 1. Fixed mold body; 101. Pressure block; 102. Feed hole; 103. Positioning rod; 104. Guide rod; 2. Heat sink; 21. Through hole; 22. Buckle plate; 23. Fastening bolt; 24. First cooling box; 25. Second cooling box; 26. Groove; 27. Liquid storage tank; 28. Sealing gasket; 3. Heat sink; 4. Moving mold body; 5. Fixed base; 51. Telescopic device; 52. Ejector rod; 53. Socket; 6. Mold core; 61. Cavity; 7. Water outlet pipe; 71. Water inlet pipe. Detailed Implementation

[0024] 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.

[0025] like Figures 1-7 As shown, an injection molding mold for an indicator light body includes a fixed mold body 1, a movable mold body 4 on one side of the fixed mold body 1, a heat sink 2 on one side of the movable mold body 4, and a heat sink 3 between the movable mold body 4 and the heat sink 2. The heat sink 3 can absorb heat, which is beneficial for absorbing the heat of the heat sink 2 and dissipating the heat to the air, thereby accelerating the heat dissipation of the heat sink 2. The heat sink 2 includes a first cooling box 24 and a second cooling box 25. A water outlet pipe 7 is provided on one side of the bottom of the first cooling box 24, and a water inlet pipe 71 is provided on one side of the top of the second cooling box 25. Both the first cooling box 24 and the second cooling box 25 have liquid storage tanks 27 inside. Both the first cooling box 24 and the second cooling box 25 have openings at one end, and the opening ends of the first cooling box 24 and the second cooling box 25 are fitted together to form a complete box body.

[0026] A mold core 6 is provided on one side of the heat sink 2, and a cavity 61 is opened on the surface of the mold core 6; the water outlet pipe 7 and the water inlet pipe 71 are connected to the external water cooling circulation system. Coolant is input into the second cooling box 25 through the water inlet pipe 71. The coolant flows naturally into the interior of the first cooling box 24 under the action of gravity, and finally is discharged from the water outlet pipe 7. The first cooling box 24 and the second cooling box 25 absorb and conduct heat from the mold core 6 and the internal plastic. The coolant absorbs heat and carries it away, thereby achieving the purpose of cooling. The specific cooling principle of the coolant is already existing technology and will not be elaborated here.

[0027] A pressure block 101 that mates with the cavity 61 is provided on one side of the fixed mold body 1. A guide rod 104 is provided on the side of the fixed mold body 1 opposite to the pressure block 101. Both the guide rod 104 and the pressure block 101 are provided with feed holes 102. During the injection molding process, the external injection molding machine injects molten plastic into the feed hole 102 of the guide rod 104. Under pressure, the molten plastic is pressed into the feed hole 102 of the pressure block 101 and flows out from the port. In the mold closing state, the end face of the fixed mold body 1 is in contact with the surface of the mold core 6. At this time, the pressure block 101 is also pressed into the cavity 61. A gap is left between the pressure block 101 and the cavity 61. The molten plastic enters this gap and cools to form the lamp body, thereby completing the injection molding.

[0028] The heat sink 2 has a groove 26 on one side facing the mold core 6. The mold core 6 is placed in the groove 26. The corner of the mold core 6 is fixed to the first cooling box 24 and the second cooling box 25 with bolts, thereby fixing the mold core 6 and preventing the mold core 6 from detaching from the heat sink 2.

[0029] like Figures 1-5 As shown, a sealing gasket 28 is provided between the first cooling box 24 and the second cooling box 25, and a buckle plate 22 is provided at both ends of the first cooling box 24 and the second cooling box 25. Figure 3 and Figure 4 What is shown is only the buckle plate 22 on the top of the first cooling box 24 and the second cooling box 25. The two extended ends of the buckle plate 22 are respectively provided with fastening bolts 23 between the first cooling box 24 and the second cooling box 25. Before connecting the first cooling box 24 and the second cooling box 25, the sealing gasket 28 needs to be placed between the two, and then the sealing gasket 28 is clamped between the first cooling box 24 and the second cooling box 25. Then the buckle plate 22 is used to fasten the first cooling box 24 and the second cooling box 25. Finally, the extended ends of the buckle plate 22 are fixed to the first cooling box 24 and the second cooling box 25 with the fastening bolts 23.

[0030] like Figures 1-5As shown, the first cooling box 24 and the second cooling box 25 are provided with multiple through holes 21 at the position of the groove 26. A push rod 52 is inserted into one side of the through hole 21. The extended end of the push rod 52 is provided with a fixed seat 5. The fixed seat 5 is provided with a telescopic device 51. The telescopic end of the telescopic device 51 is connected to the moving mold body 4. During the demolding process, the moving mold body 4 drives the heat sink 3 and the heat sink 2 to move towards the fixed seat 5. During this process, the position of the push rod 52 remains unchanged, but the push rod 52 passes through the heat sink 3, through the through hole 21, and also through the hole in the cavity 61. Then, the lamp body located in the cavity 61 is pushed away from the cavity 61, thereby achieving the purpose of demolding.

[0031] like Figures 1-5 As shown, the outer wall of the moving mold body 4 is provided with a socket 53, and the outer wall of the fixed mold body 1 is fixed with a positioning rod 103. During the process of moving the moving mold body 4 to the side of the fixed mold body 1 to close the mold, when the surface of the mold core 6 is in contact with the surface of the fixed mold body 1, the end of the positioning rod 103 is inserted into the socket 53 (not shown in the figure) to maintain the state between the moving mold body 4 and the fixed mold body 1.

[0032] 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 lamp body injection molding mold for a pilot lamp, comprising a fixed mold body (1), a movable mold body (4) is arranged on one side of the fixed mold body (1), characterized in that: The side of the movable die body (4) is provided with a heat dissipation piece (2), the heat dissipation piece (2) comprises a first cooling box (24) and a second cooling box (25), the bottom side of the first cooling box (24) is provided with a water outlet pipe (7), the top side of the second cooling box (25) is provided with a water inlet pipe (71), the interiors of the first cooling box (24) and the second cooling box (25) are both provided with liquid storage grooves (27), and the ends of the first cooling box (24) and the second cooling box (25) are both provided with openings, and the opening ends of the first cooling box (24) and the second cooling box (25) are combined to form a complete box body after being pasted. The side of the heat dissipation piece (2) is provided with a mold core (6), the surface of the mold core (6) is provided with a cavity (61), and the side of the fixed die body (1) is provided with a pressing block (101) matched with the cavity (61).

2. The indicator light body injection molding mold of claim 1, wherein: The side of the heat dissipation piece (2) is provided with a groove (26) opposite to the mold core (6), the mold core (6) is placed in the groove (26), and the outer wall of the mold core (6) is tightly pasted with the groove (26).

3. The indicator light body injection molding mold of claim 1, wherein: The first cooling box (24) and the second cooling box (25) are provided with sealing washers (28) therebetween, the two ends of the first cooling box (24) and the second cooling box (25) are both provided with buckling plates (22), and the two extension ends of the buckling plates (22) are respectively provided with fastening bolts (23) between the first cooling box (24) and the second cooling box (25).

4. The indicator light body injection molding mold of claim 2, wherein: The first cooling box (24) and the second cooling box (25) are provided with a plurality of through holes (21) at the positions in the groove (26), one side of the through holes (21) is provided with a ejector rod (52), the extension end of the ejector rod (52) is provided with a fixing seat (5), the fixing seat (5) is provided with a telescopic device (51), and the telescopic end of the telescopic device (51) is connected with the movable die body (4).

5. The indicator light body injection molding mold of claim 1, wherein: The outer wall of the movable die body (4) is provided with a socket (53), and the outer wall of the fixed die body (1) is fixed with a positioning rod (103).

6. The indicator light body injection molding mold of claim 1, wherein: The side of the fixed die body (1) relative to the pressing block (101) is provided with a material guiding rod (104), and the material guiding rod (104) and the pressing block (101) are both provided with feeding holes (102).

7. The indicator light body injection molding mold of claim 1, wherein: The movable die body (4) and the heat dissipation piece (2) are provided with a heat dissipation fin (3).

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