Forming die for automobile lamp cooling fin casting

Abstract

The utility model relates to an automobile lamp radiating fin casting forming die, which comprises an upper die provided with an upper die core, the upper die core comprises a fixed die core and a movable die core, a forming part is formed on the lower surface of the fixed die core, a forming surface is formed on the lower surface of the movable die core, and the forming part and the forming surface jointly form a radiating fin; the movable mold core obliquely penetrates through the fixed mold core, and the movable mold core can move towards the interior of the fixed mold core to eject out the cooling fins; the lower die is provided with a lower die core, a forming cavity is formed in the upper surface of the lower die core, and the forming cavity can be in butt joint with the forming part and the forming surface; the movable mold core obliquely penetrates through the fixed mold core and the movable plug pin, so that the movable mold core horizontally moves along the through hole to eject the cooling fin, and the situation that the formed cooling fin interferes with the mold during demolding, and consequently the cooling fin and the mold are damaged is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile castings, and in particular to a casting forming die for an automobile lamp heat sink. Background Art

[0002] Car lights are an important component with functions such as lighting and sending information to other vehicles. Car lights will generate a lot of heat during use, so continuous heat dissipation is required to ensure the normal and continuous use of the lights. Nowadays, cars all use heat sinks to maintain the continuous heat dissipation performance of the lights.

[0003] With the continuous development of the automobile industry, the structure and function of headlights have been improved accordingly. In order to attract consumers and adapt to more structures, different automobile manufacturers have made different improvements to the structure of headlights. The specifications of heat sinks of different models are different. The heat sink of headlights needs to be changed according to the shape of the headlights. There is a situation where the heat sink is not perpendicular to the connecting part. During demolding, the formed heat sink interferes with the mold, causing damage to the heat sink and the mold.

[0004] Therefore, it is necessary to develop a casting forming die for automobile lamp heat sink to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a casting forming die for a heat sink of an automobile lamp which can avoid interference.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a casting forming mold for a heat sink of an automobile lamp, comprising:

[0007] The upper mold is provided with an upper mold core, the upper mold core includes a fixed mold core and a movable mold core, the lower surface of the fixed mold core forms a molding part, the lower surface of the movable mold core forms a molding surface, and the molding part and the molding surface jointly shape the heat sink;

[0008] The movable mold core obliquely penetrates the fixed mold core, and the movable mold core can move into the fixed mold core to eject the heat sink;

[0009] The lower mold is provided with a lower mold core, and a molding cavity is formed on the upper surface of the lower mold core. The molding cavity can be connected with the molding part and the molding surface.

[0010] Furthermore, the fixed mold core also has a through hole, which obliquely penetrates the upper and lower surfaces of the fixed mold core, and the movable mold core can move along the through hole.

[0011] Furthermore, a supporting protrusion is provided in the through hole, and the supporting protrusion surrounds the inner wall of the through hole.

[0012] Furthermore, a latch and a bracket are installed on the top of the movable mold core, the latch passes through the bracket and is connected to the movable mold core, and when the latch is moved, the movable mold core moves horizontally, the movable mold core is in an oblique insertion state, and the bottom of the movable mold core moves along the through hole.

[0013] Furthermore, the upper mold is provided with an upper module, and the upper module can drive the latch.

[0014] Furthermore, the upper mold includes a first cooling channel, and the first cooling channel extends from the side of the fixed mold core into the fixed mold core.

[0015] Furthermore, the lower mold includes a second cooling channel, and the second cooling channel extends from the side of the lower mold core into the lower mold core.

[0016] Furthermore, the lower mold core has a flow channel formed by being recessed inward from its upper surface, and the flow channel is connected to the molding cavity.

[0017] Compared with the prior art, the beneficial effect of the utility model is that the utility model is a casting molding mold for automobile headlight heat sink, which has the characteristic of avoiding interference. The movable mold core is obliquely inserted through the fixed mold core, and the pin is moved to make the movable mold core move horizontally along the through hole to eject the heat sink, thereby avoiding interference between the molded heat sink and the mold during demolding, causing damage to the heat sink and the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a casting molding die for a car lamp heat sink of the utility model;

[0020] Figure 2 for Figure 1 The schematic diagram of the explosion structure of the upper die of the automobile headlight heat sink casting mold is shown;

[0021] Figure 3 for Figure 2 Another structural schematic diagram of the automotive lamp heat sink casting mold shown;

[0022] Figure 4 for Figure 2 The schematic diagram of the structure of the movable mold core of the automobile headlight heat sink casting mold shown in the figure;

[0023] Figure 5 for Figure 1 The figure shows a schematic diagram of the lower die structure of a casting die for a car lamp heat sink.

[0024] Figure 6 for Figure 5 The schematic diagram of the structure of the lower mold of the automobile headlight heat sink casting mold is shown at another angle.

[0025] In the figure: 1, upper mold; 2, lower mold; 3, casting part; 11, upper module; 12, upper mold core; 111, first receiving cavity; 112, locking piece; 121, fixed mold core; 122, movable mold core; 128, molding part; 123, through hole; 124, supporting protrusion; 125, molding surface; 126, latch; 127, bracket; 13, first cooling channel; 21, lower module; 22, lower mold core; 211, second receiving cavity; 221, molding cavity; 222, runner; 23, second cooling channel; 24, ejector pin. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Please see Figures 1 to 6 The utility model is a casting forming mold for a heat sink of an automobile lamp, which comprises an upper mold 1 and a lower mold 2.

[0028] Please see Figure 1 The upper mold 1 includes an upper module 11 and an upper mold core 12 installed in the upper module 11. The upper module 11 is recessed inward from the lower surface to form a first receiving cavity 111. The first receiving cavity 111 is used to fix and limit the position of the upper mold core 12. A locking piece 112 is installed on the outer side of the upper module 11. When the upper mold 1 and the lower mold 2 are docked, the locking piece 112 is used to ensure a tight connection with the lower mold 2.

[0029] Please see Figures 2 to 3The upper mold core 12 includes a fixed mold core 121 and a movable mold core 122. The fixed mold core 121 and the movable mold core 122 are both installed in the first receiving cavity 111 and move synchronously with the upper module 11. The fixed mold core 121 protrudes outward from the lower surface to form a plurality of molding parts 128. The number of the molding parts 128 changes according to demand. In this embodiment, the number of the molding parts 128 is four and arranged in a matrix. The structure of the molding parts 128 changes according to demand. The fixed mold core 121 also has a through hole 123. The through hole 123 obliquely penetrates the upper and lower surfaces of the fixed mold core 121. A supporting protrusion 124 is provided in the through hole 123, and the supporting protrusion 124 surrounds the inner wall of the through hole 123.

[0030] Please see Figure 4 The movable mold core 122 is obliquely inserted into the through hole 123 and can move along the through hole 123. It is limited by the supporting protrusion 124, so that the movable mold core 122 can be installed in the through hole 123 and move with the fixed mold core 121. The lower surface of the movable mold core 122 constitutes a molding surface 125. The molding surface 125 and the molding part 128 jointly mold the product. The top of the movable mold core 122 is equipped with a latch 126 and a bracket 127. The latch 126 penetrates the bracket 127 and is connected to the movable mold core 122. After molding, the movable mold core 122 is horizontally moved by moving the latch 126. The movable mold core 122 is in an oblique insertion state. The bottom of the movable mold core 122 moves along the through hole 123 to eject the heat sink.

[0031] The upper module 11 can drive the latch 126 to move.

[0032] The upper mold 1 includes a first cooling channel 13 . The first cooling channel 13 extends from a side surface of the fixed mold core 121 into the fixed mold core 121 .

[0033] Please see Figure 5 and Figure 6 The lower mold 2 includes a lower mold section 21 and a lower mold core 22. The lower mold section 21 is recessed inward from the upper surface to form a second receiving cavity 211. The second receiving cavity 211 is used to fix and limit the position of the lower mold core 22. The outer side of the lower mold section 21 is connected to the locking piece 112.

[0034] The lower mold core 22 is installed in the second accommodating cavity 211, and is recessed inward from the upper surface to form a plurality of molding cavities 221. The number of the molding cavities 221 changes according to demand. In this embodiment, the number of the molding cavities 221 is four and they are arranged in a matrix, corresponding to the molding parts 128 one by one. When the upper mold 1 is docked with the lower mold 2, the molding part 128 extends into the molding cavity 221, and the structure of the molding cavity 221 changes according to demand.

[0035] The lower mold core 22 further includes a flow channel 222 formed inwardly concave from the upper surface thereof, and the flow channel 222 is connected to the plurality of molding cavities 221 respectively.

[0036] The lower mold 2 includes a second cooling channel 23 . The second cooling channel 23 extends from the side of the lower mold core 22 into the lower mold core 22 .

[0037] A plurality of ejector pins 24 are disposed below the lower mold core 22 . The plurality of ejector pins 24 can extend vertically upward into the molding cavity 221 . After the heat sink is formed, the plurality of ejector pins 24 can extend into the molding cavity 221 to eject the heat sink.

[0038] A casting part 3 is installed on one side of the upper mold 1 and the lower mold 2 , and the casting part 3 is connected to the flow channel 222 .

[0039] When the utility model is used, an automobile headlight heat sink casting molding mold is used, an upper mold 1 and a lower mold 2 are docked and tightly connected by a locking piece 112, a casting part 3 inputs liquefied aluminum into a molding cavity 221 through a flow channel 222, and is restricted by a fixed mold core 121 and a movable mold core 122, cooling liquid flows through a first cooling channel 13 and a second cooling channel 23, so that the liquefied aluminum is cooled and solidified to form, when the upper mold 1 is lifted, the movable mold core 122 is horizontally moved by moving a latch 126, the movable mold core 122 is in an oblique insertion state, the bottom of the movable mold core 122 moves along a through hole 123, and the heat sink is ejected, and at the same time, a plurality of ejector pins 24 can be extended into the molding cavity 221 to eject the heat sink, and the heat sink is demoulded as a whole.

[0040] The utility model is a casting forming mold for a heat sink of an automobile lamp, which has the characteristic of avoiding interference. A movable mold core is obliquely inserted through a fixed mold core, and a latch is moved so that the movable mold core moves horizontally along a through hole to eject the heat sink, thereby avoiding interference between the molded heat sink and the mold during demoulding, thereby causing damage to the heat sink and the mold.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A casting mold for a car lamp heat sink, characterized in that: It includes: An upper mold (1) is provided with an upper mold core (12), wherein the upper mold core (12) comprises a fixed mold core (121) and a movable mold core (122), wherein the lower surface of the fixed mold core (121) forms a molding portion (128), and the lower surface of the movable mold core (122) forms a molding surface (125), and the molding portion (128) and the molding surface (125) jointly shape the heat sink; The movable mold core (122) obliquely penetrates the fixed mold core (121), and the movable mold core (122) can move into the fixed mold core (121) to eject the heat sink; The lower mold (2) is provided with a lower mold core (22), and a molding cavity (221) is formed on the upper surface of the lower mold core (22). The molding cavity (221) can be connected to the molding portion (128) and the molding surface (125).

2. The automotive lamp heat sink casting mold according to claim 1, characterized in that: The fixed mold core (121) also has a through hole (123), and the through hole (123) obliquely penetrates the upper and lower surfaces of the fixed mold core (121), and the movable mold core (122) can move along the through hole (123).

3. The automotive lamp heat sink casting mold according to claim 2, characterized in that: A supporting protrusion (124) is provided in the through hole (123), and the supporting protrusion (124) surrounds the inner wall of the through hole (123).

4. The automotive lamp heat sink casting mold according to claim 2, characterized in that: A latch (126) and a bracket (127) are installed on the top of the movable mold core (122); the latch (126) passes through the bracket (127) and is connected to the movable mold core (122); when the latch (126) is moved, the movable mold core (122) moves horizontally; the movable mold core (122) is in an oblique insertion state, and the bottom of the movable mold core (122) moves along the through hole (123).

5. The automotive lamp heat sink casting mold according to claim 4, characterized in that: The upper mold (1) is provided with an upper module (11), and the upper module (11) can drive the latch (126).

6. The automotive lamp heat sink casting mold according to claim 1, characterized in that: The upper mold (1) comprises a first cooling channel (13), wherein the first cooling channel (13) extends from a side surface of the fixed mold core (121) into the fixed mold core (121).

7. The automotive lamp heat sink casting mold according to claim 1, characterized in that: The lower mold (2) comprises a second cooling channel (23), and the second cooling channel (23) extends from the side of the lower mold core (22) into the lower mold core (22).

8. The automotive lamp heat sink casting mold according to claim 1, characterized in that: The lower mold core (22) has a flow channel (222) formed by being recessed inwardly from its upper surface, and the flow channel (222) is communicated with the molding cavity (221).

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