Sliding block driving switch mechanism for double-color injection mold of automobile lamp

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a sliding block driving switch mechanism of an automobile lamp double-color injection mold. The automobile lamp double-color injection mold comprises an automobile lamp double-color injection lower mold and an automobile lamp double-color injection upper mold. In the injection molding process, the automobile lamp double-color injection molding lower mold and the automobile lamp double-color injection molding upper mold are close to each other, so that the mold closing groove abuts against the mold closing protrusion, the automobile lamp forming protrusion is used for injection molding of a double-color automobile lamp plastic part, and molten materials are injected through the double-color injection molding part in the injection molding main plate; the double-color injection molding part is matched with the injection molding flow dividing part to complete double-color injection molding, during injection molding, the sliding block driving switch demolding assembly is used for assisting the outer side structure of the double-color automobile lamp, and after injection molding is completed, the sliding block driving switch demolding assembly is moved, so that the sliding block driving switch demolding assembly is separated from the molded plastic part; and after the mold is opened, the plastic part can be demolded better, the demolding space is sufficient, the situation of jamming is avoided, and the surface quality of the plastic part is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a sliding block driving switch mechanism of a two-color injection mold for an automobile lamp. Background Art

[0002] A two-color mold is a mold in which two plastic materials are injected on the same injection molding machine and molded twice, but the product is only ejected once. This molding process is generally called double-material injection molding, which is usually completed by a set of molds and requires a special two-color injection molding machine. Two-color molds are becoming increasingly popular in the market. This process can make the product look more beautiful and easy to change colors without spraying, but it is expensive and has high technical requirements. At present, when injecting two-color injection molds for automobile headlights, since there are multiple cavities in a mold, the demolding structure after injection is relatively complex, the floor space is large, the demolding space is insufficient, and it is easy to get stuck, thereby affecting the surface quality of the plastic part. Therefore, it is urgent to design a slider drive switch mechanism for the two-color injection mold for automobile headlights that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a two-color injection molding mold for automobile lights [application number: 202022629798.X], which includes a first mold and a second mold. The first mold and the second mold are each provided with a pair. The two first molds are symmetrical with the two second molds respectively. A bearing is fixedly installed between the two first molds, and a fixing plate is fixedly installed between the two second molds. The bearings and the fixing plate are symmetrical with each other. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a sliding block driving switch mechanism for a two-color injection mold of an automobile lamp.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A slider-driven switch mechanism of a two-color injection mold for automobile headlights comprises a two-color injection lower mold for automobile headlights and an upper mold for automobile headlights, an injection mainboard is arranged above the upper mold for automobile headlights, a two-color injection molded part is arranged in the injection mainboard, a clamping groove is arranged in the lower mold for automobile headlights, a clamping protrusion is arranged in the upper mold for automobile headlights, the clamping groove has two injection diverter parts and four headlight molding protrusions, the injection diverter part is located between two adjacent headlight molding protrusions, a slider-driven switch demolding component that can move along one end close to or away from the headlight molding protrusion is arranged in the lower mold for automobile headlights, and the slider-driven switch demolding component is slidably matched with the two-color injection lower mold for automobile headlights.

[0007] In the above-mentioned slider-driven switch mechanism of the two-color injection mold for automobile headlights, the slider-driven switch demolding assembly includes four inclined sliding rods arranged in the lower mold of the two-color injection mold for the headlights, and the top of the inclined sliding rods has a demolding slider integrally formed with the inclined sliding rods, and the demolding slider corresponds to the position of the molding protrusion of the headlights. A limiting sliding part is provided in the lower mold of the two-color injection mold for the headlights, and the inclined sliding rods pass through the limiting sliding part and the two are slidably matched.

[0008] In the above-mentioned slider driving switch mechanism of the automobile headlight two-color injection mold, a fixed base is provided under the lower mold of the automobile headlight two-color injection mold, and inclined slide grooves are provided on both sides of the fixed base. The bottom of the inclined slide rod extends into the inclined slide groove and slides with the inclined slide groove.

[0009] In the above-mentioned slider driving switch mechanism of the automobile headlight two-color injection mold, the limit sliding part includes a limit sliding seat arranged in the lower mold of the automobile headlight two-color injection molding, and the limit sliding seat is provided with two support rods on the side close to the headlight molding protrusion, and a semi-open groove is formed between the support rod and the limit sliding seat, and the inclined sliding rod passes through the semi-open groove.

[0010] In the above-mentioned slider driving switch mechanism of the two-color injection mold of the automobile lamp, the support rod has an auxiliary molding surface on the side close to the molding protrusion of the lamp.

[0011] In the above-mentioned slider driving switch mechanism of the automobile headlight two-color injection mold, four slide connection side platforms are provided in the lower mold of the automobile headlight two-color injection mold, and a T-shaped bevel groove is provided in the slide connection side platform. The limiting slide has a T-shaped protrusion extending into the T-shaped bevel groove, and the T-shaped protrusion is slidably matched with the T-shaped bevel groove.

[0012] In the above-mentioned slider driving switch mechanism of the two-color injection mold for automobile headlights, the injection diversion part includes two injection diversion areas arranged in the mold closing groove, and the injection diversion areas correspond to the positions of the headlight molding protrusions.

[0013] In the above-mentioned automobile headlight two-color injection mold slider drive switch mechanism, the two-color injection molded part includes two injection flow plates arranged on the injection main board, and an injection tube extending to the injection diversion area is provided at the bottom of the injection flow plate.

[0014] In the above-mentioned slider driving switch mechanism of the automobile headlight two-color injection mold, a bottom plate is provided below the lower mold of the automobile headlight two-color injection mold, and the fixed base is connected to the bottom plate.

[0015] In the above-mentioned slider driving switch mechanism of the automobile headlight two-color injection mold, a cooling water pipe group is provided in the lower mold of the automobile headlight two-color injection mold.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. In the injection molding process of the utility model, the lower mold and the upper mold of the two-color injection molding of the headlight are brought close to each other, so that the mold concave groove and the mold convex protrusion are abutted against each other, and the headlight molding protrusion is used to injection mold the two-color automobile headlight plastic part, and the molten material is injected through the two-color injection molding part in the injection molding main board, and the two-color injection molding part cooperates with the injection molding diversion part to complete the two-color injection molding. During injection molding, the slider drives the switch demolding component to assist the outer structure of the two-color headlight. After the injection molding is completed, the slider drives the switch demolding component to be separated from the molded plastic part by moving the slider to drive the switch demolding component. The sliding demolding structure is adopted, and the plastic part can be better demolded after the mold is opened. The demolding space is sufficient to avoid the jamming situation and improve the surface quality of the plastic part.

[0018] 2. In the process of the inclined sliding rod of the utility model, the inclined sliding rod slides along the semi-open groove, and the two support rods limit the demoulding slider to avoid the angular deviation of the demoulding slider during the demoulding process, thereby improving the accuracy of demoulding. At the same time, the support rod can slide to the side away from the plastic part at the same time under the drive of the inclined sliding rod, thereby realizing linked demoulding, and comprehensive side demoulding can be achieved with only one action.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a partial structural schematic diagram of the utility model.

[0022] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0023] Figure 4 It is a structural schematic diagram of the upper mold for two-color injection molding of car lights.

[0024] In the figure: two-color injection molding lower mold 1 for car lights, two-color injection molding upper mold 2 for car lights, injection molding main board 3, two-color injection molding parts 4, mold closing groove 5, mold closing protrusion 6, injection molding diversion part 7, car light molding protrusion 8, slider drive switch demoulding component 9, inclined slide bar 10, demoulding slide bar 11, limiting slide 12, fixed base 13, inclined slide groove 14, limiting slide seat 15, bracket rod 16, auxiliary molding surface 17, slide seat connecting side platform 18, T-shaped protrusion 19, injection molding diversion area 20, injection molding flow plate 21, injection molding pipe 22, bottom plate 23, cooling water pipe group 24. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4 As shown, a slider-driven switch mechanism of a two-color injection mold for automobile headlights comprises a two-color injection lower mold 1 for automobile headlights and an upper mold 2 for automobile headlights, an injection mainboard 3 is arranged above the upper mold 2 for automobile headlights, a two-color injection molded part 4 is arranged in the injection mainboard 3, a clamping groove 5 is arranged in the lower mold 1 for automobile headlights, a clamping protrusion 6 is arranged in the upper mold 2 for automobile headlights, two injection diverter portions 7 and four headlight molding protrusions 8 are arranged in the clamping groove 5, the injection diverter portion 7 is located between two adjacent headlight molding protrusions 8, a slider-driven switch demolding component 9 which can move along one end close to or away from the headlight molding protrusion 8 is arranged in the lower mold 1 for automobile headlights, and the slider-driven switch demolding component 9 is slidably matched with the two-color injection lower mold 1 for automobile headlights.

[0027] In this embodiment, during the injection molding process, the two-color injection molding lower mold 1 and the two-color injection molding upper mold 2 of the car light are brought close to each other so that the mold closing groove 5 and the mold closing protrusion 6 are abutted against each other, and the car light molding protrusion 8 is used to injection mold the two-color automobile car light plastic part. The molten material is injected through the two-color injection molding part 4 in the injection molding main board 3, and the two-color injection molding part 4 cooperates with the injection molding diversion part 7 to complete the two-color injection molding. During injection molding, the slider drives the switch demolding component 9 to assist the outer structure of the two-color car light. After the injection molding is completed, the slider drives the switch demolding component 9 to be moved so that the slider drives the switch demolding component 9 to be separated from the molded plastic part. The sliding demolding structure is adopted, and the plastic part can be better demolded after the mold is opened. The demolding space is sufficient to avoid the problem of jamming and improve the surface quality of the plastic part.

[0028] Combination Figure 1-4 As shown, the slider driven switch demolding assembly 9 includes four inclined sliding rods 10 arranged in the lower mold 1 of the two-color injection molding of the car light, and the top of the inclined sliding rod 10 has a demolding slider 11 integrally formed with the inclined sliding rod 10, and the demolding slider 11 corresponds to the position of the car light molding protrusion 8. A limiting sliding part 12 is provided in the lower mold 1 of the two-color injection molding of the car light, and the inclined sliding rod 10 passes through the limiting sliding part 12 and the two are slidably matched.

[0029] Specifically, during injection molding, the demoulding slider 11 is used to assist the outer structure of the two-color headlight. After the injection molding is completed, the inclined slide bar 10 is moved, and the demoulding slider 11 is driven by the inclined slide bar 10 to slide away from the plastic part, so that the demoulding slider 11 is separated from the molded plastic part. The sliding demoulding structure is adopted, and the plastic part can be better demoulded after the mold is opened. The demoulding space is sufficient to avoid jamming and improve the surface quality of the plastic part. During the demoulding process, the limiting slide 12 limits the demoulding slider 11 to avoid angular deviation of the demoulding slider 11 during the demoulding process, thereby improving the accuracy of demoulding.

[0030] A fixed base 13 is disposed below the two-color injection lower mold 1 of the vehicle lamp, and inclined slide grooves 14 are disposed on both sides of the fixed base 13. The bottom of the inclined slide rod 10 extends into the inclined slide groove 14 and slidably cooperates with the inclined slide groove 14.

[0031] In this embodiment, the fixed base 13 is used to connect the inclined slide bar 10. During the demoulding process, the inclined slide bar 10 slides along the track of the inclined slide groove 14, so that the demoulding slider 11 slides away from the plastic part to achieve side demoulding.

[0032] Combination Figure 2 , Figure 3 As shown, the limiting sliding member 12 includes a limiting sliding seat 15 arranged in the lower mold 1 of the two-color injection molding of the car lamp, and the limiting sliding seat 15 is provided with two support rods 16 on the side close to the molding protrusion 8 of the car lamp, and a semi-open groove is formed between the support rods 16 and the limiting sliding seat 15, and the inclined sliding rod 10 passes through the semi-open groove.

[0033] In the present embodiment, during the oblique top sliding process of the inclined slide rod 10, the inclined slide rod 10 slides along the semi-open groove, and the two support rods 16 limit the demolding slider 11 to avoid the angular deviation of the demolding slider 11 during the demolding process, thereby improving the demolding accuracy. At the same time, the support rod 16 can be driven by the inclined slide rod 10 to slide to the side away from the plastic part at the same time, realizing linked demolding, and comprehensive side demolding can be achieved with only one action.

[0034] The support rod 16 has an auxiliary molding surface 17 on one side close to the lamp molding protrusion 8 .

[0035] In this embodiment, the auxiliary molding surface 17 is used to assist in molding the side structure of the plastic part during the injection molding process.

[0036] Combination Figure 3 As shown, the two-color injection lower mold 1 of the headlight is provided with four slide connection side platforms 18, and the slide connection side platforms 18 are provided with T-shaped bevel grooves. The limiting slide 15 has a T-shaped protrusion 19 extending into the T-shaped bevel groove, and the T-shaped protrusion 19 is slidably matched with the T-shaped bevel groove.

[0037] In this embodiment, the slide connecting side platform 18 is used to fix the limiting slide 15, and the limiting is achieved through the sliding cooperation between the T-shaped protrusion 19 and the T-shaped inclined groove.

[0038] The injection diversion portion 7 includes two injection diversion areas 20 arranged in the mold concave groove 5 , and the injection diversion areas 20 correspond to the positions of the lamp molding protrusions 8 .

[0039] In this embodiment, the injection diversion area 20 can divert the molten material and inject it into the multiple headlight molding protrusions 8 simultaneously.

[0040] Combination Figure 1-3 As shown, the two-color injection molded part 4 includes two injection flow plates 21 arranged on the injection main board 3, and an injection tube 22 extending to the injection diversion area 20 is provided at the bottom of the injection flow plate 21.

[0041] In this embodiment, during injection molding, the molten material is injected into the injection molding flow plate 21 through the injection molding main board 3 , and then the molten material is sent to the injection molding diversion area 20 through the injection molding pipe 22 .

[0042] Combination Figure 1-3 As shown, a bottom plate 23 is provided below the lower mold 1 for two-color injection molding of the vehicle lamp, and the fixed base 13 is connected to the bottom plate 23 .

[0043] In this embodiment, the bottom plate 23 is used to fix the base 13 .

[0044] Combination Figure 1-3 As shown, a cooling water pipe group 24 is provided in the lower mold 1 for the two-color injection molding of the vehicle lamp.

[0045] In this embodiment, after the injection molding is completed, cold water is injected into the cooling water pipe group 24 to cool the molded plastic part.

[0046] The working principle of the utility model is:

[0047] During the injection molding process, the lower mold 1 and the upper mold 2 for the two-color injection molding of the headlight are brought close to each other, so that the mold concave groove 5 and the mold protrusion 6 are abutted, and the headlight molding protrusion 8 is used for injection molding the two-color automobile headlight plastic part. During the melt injection molding, the molten material is injected into the injection flow plate 21 through the injection main board 3, and then the molten material is sent to the injection diversion area 20 through the injection pipe 22. The injection diversion area 20 can divert the molten material and inject it into multiple headlight molding protrusions 8 simultaneously.

[0048] During injection molding, the demoulding slider 11 is used to assist the outer structure of the two-color headlight. After the injection molding is completed, the inclined slide bar 10 is moved, and the demoulding slider 11 is driven by the inclined slide bar 10 to slide away from the plastic part, so that the demoulding slider 11 is separated from the molded plastic part. The sliding demoulding structure is adopted, and the plastic part can be better demoulded after the mold is opened. The demoulding space is sufficient to avoid the jamming situation and improve the surface quality of the plastic part. The fixed base 13 is used to connect the inclined slide bar 10. During the demoulding process, the inclined slide bar 10 slides along the track of the inclined slide groove 14, so that the demoulding slider 11 slides away from the plastic part to achieve side demoulding.

[0049] During the inclined top sliding process of the inclined slide bar 10, the inclined slide bar 10 slides along the semi-open groove, and the two support rods 16 limit the demoulding slider 11 to prevent the demoulding slider 11 from angular deviation during the demoulding process, thereby improving the demoulding accuracy. At the same time, the support rod 16 can slide to the side away from the plastic part at the same time under the drive of the inclined slide bar 10 to realize the linkage demoulding. Only one action is required to realize the full demoulding of the side.

[0050] The auxiliary molding surface 17 is used to assist in molding the side structure of the plastic part during the injection molding process. The slide seat connecting side platform 18 is used to fix the limit slide seat 15, and the limit is achieved through the sliding cooperation between the T-shaped protrusion 19 and the T-shaped inclined groove.

[0051] After the injection molding is completed, cold water is injected into the cooling water pipe group 24 to cool the molded plastic parts.

[0052] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0053] Although this article uses more terms such as two-color injection molding lower mold 1 for car lights, two-color injection molding upper mold 2 for car lights, injection molding main board 3, two-color injection molding parts 4, mold closing groove 5, mold closing protrusion 6, injection molding diversion part 7, car lights molding protrusion 8, slider drive switch demoulding component 9, inclined slide rod 10, demoulding slider 11, limit slide 12, fixed base 13, inclined slide groove 14, limit slide seat 15, support rod 16, auxiliary molding surface 17, slide seat connecting side platform 18, T-shaped protrusion 19, injection molding diversion area 20, injection molding flow plate 21, injection molding pipe 22, bottom plate 23, cooling water pipe group 24, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.

Claims

1. A slider drive switch mechanism of a two-color injection mold for automobile headlights, comprising a two-color injection lower mold (1) and a two-color injection upper mold (2) for automobile headlights, wherein an injection main board (3) is arranged above the two-color injection upper mold (2) for automobile headlights, and characterized in that: The injection molding main board (3) is provided with a two-color injection molding part (4), the two-color injection molding lower mold (1) of the vehicle lamp is provided with a mold closing groove (5), the two-color injection molding upper mold (2) of the vehicle lamp is provided with a mold closing protrusion (6), the mold closing groove (5) has two injection molding diverter parts (7) and four vehicle lamp molding protrusions (8), the injection molding diverter part (7) is located between two adjacent vehicle lamp molding protrusions (8), the two-color injection molding lower mold (1) of the vehicle lamp is provided with a slider driving a switch demoulding component (9) that can move along one end close to or away from the vehicle lamp molding protrusion (8), and the slider driving a switch demoulding component (9) is slidably matched with the two-color injection molding lower mold (1) of the vehicle lamp.

2. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 1 is characterized in that: The slider-driven switch demoulding assembly (9) comprises four inclined slide bars (10) arranged in a lower mold (1) of a two-color injection molding of a vehicle lamp, the top of each inclined slide bar (10) is provided with a demoulding slider (11) integrally formed with the inclined slide bar (10), the demoulding slider (11) corresponds to the position of a molding protrusion (8) of the vehicle lamp, a limiting sliding part (12) is provided in the lower mold (1) of the two-color injection molding of the vehicle lamp, the inclined slide bar (10) passes through the limiting sliding part (12) and the two are slidably matched.

3. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 2 is characterized in that: A fixed base (13) is provided below the two-color injection molding lower mold (1) of the vehicle lamp, and inclined slide grooves (14) are provided on both sides of the fixed base (13). The bottom of the inclined slide rod (10) extends into the inclined slide groove (14) and is slidably matched with the inclined slide groove (14).

4. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 3 is characterized in that: The limiting sliding member (12) comprises a limiting sliding seat (15) arranged in a lower mold (1) of a two-color injection molding of a vehicle lamp, and two support rods (16) are arranged on one side of the limiting sliding seat (15) close to the molding protrusion (8) of the vehicle lamp, and a semi-open groove is formed between the support rods (16) and the limiting sliding seat (15), and the inclined sliding rod (10) passes through the semi-open groove.

5. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 4 is characterized in that: The support rod (16) has an auxiliary molding surface (17) on one side close to the vehicle lamp molding protrusion (8).

6. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 5 is characterized in that: The two-color injection molding lower mold (1) of the vehicle lamp is provided with four slide connection side platforms (18), the slide connection side platforms (18) are provided with T-shaped bevel grooves, the limiting slide (15) is provided with T-shaped protrusions (19) extending into the T-shaped bevel grooves, and the T-shaped protrusions (19) are slidably matched with the T-shaped bevel grooves.

7. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 6 is characterized in that: The injection molding flow diversion portion (7) comprises two injection molding flow diversion areas (20) arranged in the mold clamping groove (5), and the injection molding flow diversion areas (20) correspond to the positions of the headlight molding protrusions (8).

8. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 7 is characterized in that: The two-color injection molded part (4) comprises two injection molding flow plates (21) arranged on the injection molding main board (3), and an injection molding tube (22) extending to the injection molding diversion area (20) is provided at the bottom of the injection molding flow plates (21).

9. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 8, characterized in that: A bottom plate (23) is provided below the vehicle lamp two-color injection molding lower mold (1), and the fixed base (13) is connected to the bottom plate (23).

10. The slider driving switch mechanism of the two-color injection mold for automobile headlights according to claim 9, characterized in that: A cooling water pipe group (24) is provided in the lower mold (1) for double-color injection molding of the vehicle lamp.

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