Double-color light distribution mirror injection mold with core-pulling clamping mechanism

Abstract

The utility model provides an automobile two -tone light distribution mirror injection mold has core -pulling clamping mechanism, including lower fixed base and upper fixed base, the top fixed mounting of lower fixed base has injection down mould, the bottom fixed of upper fixed base is equipped with with injection down mould adaptation injection up mould, the bottom four corners of injection up mould all are equipped with assembly slot, four the inside all fixed mounting of assembly slot has arc inlay, one side of injection up mould bottom all is provided with two symmetrical settings of push assembly. The utility model discloses a movable T -type sliding block of injection up mould bottom, when injection up mould and injection down mould close die, through the oblique top bar insertion to the oblique type hole of T -type sliding block top, push T -type sliding block and move to arc inlay direction, thereby drive oblique top block clamping arc inlay, has improved light distribution mirror injection's cavity precision, thereby has improved the product quality of automobile two -tone light distribution mirror.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and relates to a core-pulling clamping mechanism for injection molds of automotive dual-color lens. Background Technology

[0002] Bi-color automotive lenses are an important component of automobiles. Currently, bi-color automotive lenses are mainly manufactured through injection molding using injection molds.

[0003] A search revealed a dual-color injection molding mold for an automotive headlight lens, disclosed in publication number "CN204487964U". The mold primarily comprises a horizontal turntable and molds A and B symmetrically arranged on either side of the turntable. Mold A includes an outer mold and an inner mold. The outer mold is mounted on a movable plate and can move inwards and outwards with it. The outer mold contains several hot runner needle valve-type gates that communicate with the mold cavity. This dual-color injection molding mold enables one-piece molding through secondary injection, effectively reducing the production steps and processes for headlight lenses and significantly improving production efficiency.

[0004] The above-mentioned injection mold reduces production steps and improves production efficiency through secondary injection molding. However, during the injection molding process of optical lenses, we found that after the lower injection mold and the upper injection mold are closed, the gap between the insert of the upper injection mold and the cavity is relatively large, resulting in a large precision error in the optical lens product. To address this issue, we designed a core-pulling clamping mechanism for automotive dual-color optical lens injection molds. Summary of the Invention

[0005] The purpose of this invention is to provide a core-pulling clamping mechanism for injection molds of automotive dual-color lenses, so as to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solution: A core-pulling clamping mechanism for an automotive dual-color lens injection mold, comprising a lower fixed base and an upper fixed base. A lower injection mold is fixedly installed at the top of the lower fixed base, and an upper injection mold adapted to the lower injection mold is fixedly installed at the bottom of the upper fixed base. Assembly grooves are provided at the four corners of the bottom of the upper injection mold, and arc-shaped inserts are fixedly installed inside the four assembly grooves. Two symmetrically arranged pushing components are provided on one side of the bottom of the upper injection mold.

[0007] In the aforementioned core-pulling and clamping mechanism of the automotive dual-color lens injection mold, a slot is provided between the two aligning arc-shaped inserts, and multiple positioning holes are provided between two adjacent arc-shaped inserts.

[0008] In the aforementioned core-pulling and clamping mechanism of the automotive dual-color lens injection mold, the pushing component includes an inverted T-shaped slider and an inclined ejector block. Two symmetrically arranged T-shaped grooves are provided on one side of the bottom end of the upper injection mold. T-shaped sliders are slidably connected inside the two T-shaped grooves, and inclined ejector blocks are fixedly provided on the sides of the two T-shaped sliders.

[0009] In the aforementioned core-pulling and clamping mechanism of the automotive dual-color lens injection mold, the middle of each of the two T-shaped sliders is provided with an oblique hole, and the two oblique holes are inserted into the oblique ejector rod provided on the top of the injection mold.

[0010] In the above-mentioned core-pulling and clamping mechanism of the automotive dual-color lens injection mold, the four arc-shaped inserts are provided with limit holes on their sides, and guide posts are fixed at the four corners of the top of the injection mold. The four guide posts are inserted into the corresponding limit holes.

[0011] In the aforementioned core-pulling clamping mechanism for automotive dual-color lens injection molds, multiple U-shaped locking modules are fixedly installed on both sides of the lower injection mold, and multiple locking slots are opened on both sides of the upper injection mold, with the multiple U-shaped locking modules engaging with the corresponding locking slots.

[0012] In the aforementioned core-pulling and clamping mechanism of the automotive dual-color lens injection mold, multiple cooling water inlets are equidistantly provided on the sides of the upper and lower injection molds. Each of the multiple cooling water inlets is fixedly connected to a cooling water pipe, and the multiple cooling water pipes are connected to an external water source through a water pump.

[0013] In the above-mentioned core-pulling clamping mechanism of the automotive dual-color lens injection mold, an upper fixing block is fixedly provided at the top of the upper fixing seat, and multiple injection nozzles are provided at the top of the upper fixing block, which are connected to the injection channel of the upper injection mold.

[0014] In the above-mentioned core-pulling clamping mechanism of the automotive dual-color lens injection mold, through holes are provided at the four corners of the top of the upper fixed seat, and limiting guide posts are fixed at the four corners of the top of the lower fixed seat. The limiting guide posts are inserted into the corresponding through holes.

[0015] Compared with the prior art, the advantages of the core-pulling and clamping mechanism of the injection mold for automotive dual-color lens of this utility model are as follows: through the movable T-shaped slider at the bottom of the upper injection mold, when the upper injection mold and the lower injection mold are closed, the inclined ejector rod is inserted into the inclined hole opened at the top of the T-shaped slider, pushing the T-shaped slider to move towards the arc-shaped insert, thereby driving the inclined ejector block to clamp the arc-shaped insert, improving the mold cavity accuracy of the lens injection, and thus improving the product quality of automotive dual-color lens. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the core-pulling and clamping mechanism of the injection mold for the automotive dual-color lens of this utility model.

[0017] Figure 2 This is a schematic diagram of the upper injection mold structure of the core-pulling clamping mechanism of the injection mold for automotive dual-color lens of this utility model.

[0018] Figure 3 This is a schematic diagram of the arc-shaped insert structure of the core-pulling clamping mechanism of the injection mold for automotive dual-color lens according to this utility model.

[0019] In the diagram, 1. Lower fixed seat; 2. Upper fixed seat; 3. Limiting guide post; 4. Upper fixed block; 5. Injection nozzle; 6. Upper injection mold; 7. Lower injection mold; 8. U-shaped lock module; 9. Cooling water pipe; 10. Cooling water inlet; 11. Assembly slot; 12. Arc-shaped insert; 13. Limiting hole; 14. Slot; 15. T-shaped slide; 16. T-shaped slider; 17. Angled hole; 18. Angled ejector block; 19. Positioning hole; 20. Guide post. 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 Figure 1-3 As shown, the present invention relates to a core-pulling clamping mechanism for an automotive dual-color lens injection mold, comprising a lower fixed base 1 and an upper fixed base 2. A lower injection mold 7 is fixedly installed at the top of the lower fixed base 1, and an upper injection mold 6 adapted to the lower injection mold 7 is fixedly installed at the bottom of the upper fixed base 2. Assembly grooves 11 are provided at the four corners of the bottom of the upper injection mold 6, and arc-shaped inserts 12 are fixedly installed inside the four assembly grooves 11. Two symmetrically arranged pushing components are provided on one side of the bottom of the upper injection mold 6.

[0022] Specifically, the T-shaped slider 16 is pushed towards the arc-shaped insert 12 by the bottom push component of the upper injection mold 6, thereby driving the inclined ejector block 18 to clamp the arc-shaped insert 12, which improves the mold cavity accuracy of the lens injection and thus improves the product quality of the automotive dual-color lens.

[0023] like Figure 1 , Figure 2 , Figure 3As shown, the injection mold for a dual-color lens for automobiles of this utility model has a core-pulling clamping mechanism. A slot 14 is provided between two aligned arc-shaped inserts 12, and multiple positioning holes 19 are provided between two adjacent arc-shaped inserts 12. The pushing component includes an inverted T-shaped slider 16 and an inclined ejector block 18. Two symmetrically arranged T-shaped grooves 15 are provided on one side of the bottom end of the upper injection mold 6. T-shaped sliders 16 are slidably connected inside the two T-shaped grooves 15. An inclined ejector block 18 is fixedly provided on the side of each of the two T-shaped sliders 16. An inclined hole 17 is provided in the middle of each of the two T-shaped sliders 16. The two inclined holes 17 are inserted into the inclined ejector rod provided on the top of the lower injection mold 7.

[0024] Specifically, by inserting the inclined ejector rod into the inclined hole 17, the T-shaped slider 16 can be moved. The T-shaped slider 16 pushes the inclined ejector block 18 to make close contact with the arc-shaped insert 12. When the upper injection mold 6 and the lower injection mold 7 are closed, the cavity accuracy of the injection mold is improved.

[0025] Each of the four arc-shaped inserts 12 has a limiting hole 13 on its side. Each of the four corners of the top of the injection mold 7 is fixed with a guide post 20, and the four guide posts 20 are inserted into the corresponding limiting holes 13.

[0026] Specifically, the guide post 20 and the limiting hole 13 work together to ensure precise mold closing.

[0027] Multiple U-shaped locking modules 8 are fixedly installed on both sides of the lower injection mold 7, and multiple locking slots are opened on both sides of the upper injection mold 6. The multiple U-shaped locking modules 8 are engaged with the corresponding locking slots.

[0028] Specifically, the U-shaped locking module 8 ensures the stability of the lower injection mold 7 and the upper injection mold 6 when they are closed.

[0029] Multiple cooling water inlets 10 are equidistantly provided on the sides of the upper injection mold 6 and the lower injection mold 7. Each cooling water inlet 10 is fixedly connected to a cooling water pipe 9, and the cooling water pipe 9 is connected to an external water source through a water pump.

[0030] Specifically, the cooling water pipe 9 enables the automotive dual-color lens to be cooled and shaped.

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, the injection mold of the dual-color lens for automobiles of this utility model has a core-pulling clamping mechanism. The top of the upper fixed base 2 is fixedly provided with an upper fixed block 4. The top of the upper fixed block 4 is provided with multiple injection nozzles 5. The multiple injection nozzles 5 are connected to the injection channel of the upper injection mold 6.

[0032] Specifically, by setting multiple injection nozzles 5, it is possible to make molten plastic of different colors flow from the corresponding injection nozzle 5 into the corresponding injection channel.

[0033] Through holes are provided at the four corners of the top of the upper fixed base 2, and limiting guide posts 3 are fixed at the four corners of the top of the lower fixed base 1. The limiting guide posts 3 are inserted into the corresponding through holes.

[0034] Specifically, the upper injection mold 6 and the lower injection mold 7 are precisely closed by the cooperation of the limiting guide post 3 and the through hole.

[0035] In specific implementation, when using the injection mold for automotive dual-color lens, the injection mold is first installed in the injection molding machine. When the upper injection mold 6 and the lower injection mold 7 are pushed together by the electric cylinder of the injection molding machine, the inclined ejector at the top of the lower injection mold 7 is inserted into the inclined hole 17 in the middle of the T-shaped slider 16. The inclined ejector pushes the T-shaped slider 16 to move towards the arc-shaped insert 12. The movement of the T-shaped slider 16 drives the inclined ejector block 18 to move, so that the side of the inclined ejector block 18 is in close contact with the surface of the arc-shaped insert 12. When the lower injection mold 7 and the upper injection mold 6 are completely closed, a more precise automotive lens cavity can be formed, thereby improving the product quality of the automotive dual-color lens.

[0036] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A core-pulling clamping mechanism for an injection mold of a dual-tone automotive lens, comprising a lower fixed base (1) and an upper fixed base (2), characterized in that, The lower fixing seat (1) is fixedly installed with a lower injection mold (7) at its top end. The upper fixing seat (2) is fixedly provided with an upper injection mold (6) that is compatible with the lower injection mold (7) at its bottom end. The upper injection mold (6) has four corners at its bottom end with assembly slots (11). Arc-shaped inserts (12) are fixedly installed inside the four assembly slots (11). Two symmetrically arranged pushing components are provided on one side of the bottom end of the upper injection mold (6).

2. The core-pulling clamping mechanism for the injection mold of a dual-tone automotive lens according to claim 1, characterized in that, A slot (14) is provided between two of the arc-shaped inserts (12) that are aligned, and a plurality of positioning holes (19) are provided between two adjacent arc-shaped inserts (12).

3. The core-pulling clamping mechanism for the automotive dual-tone lens injection mold according to claim 1, characterized in that, The pushing component includes an inverted T-shaped slider (16) and an inclined ejector block (18). Two symmetrically arranged T-shaped grooves (15) are provided on one side of the bottom end of the injection mold (6). T-shaped sliders (16) are slidably connected inside the two T-shaped grooves (15). An inclined ejector block (18) is fixedly provided on the side of each of the two T-shaped sliders (16).

4. The core-pulling clamping mechanism for the automotive dual-tone lens injection mold according to claim 3, characterized in that, Both T-shaped sliders (16) have oblique holes (17) in the middle, and the two oblique holes (17) are connected to the oblique ejector rods provided on the top of the injection mold (7).

5. The core-pulling clamping mechanism for the injection mold of a dual-tone automotive lens according to claim 1, characterized in that, Each of the four arc-shaped inserts (12) has a limiting hole (13) on its side. Each of the four corners of the top of the injection mold (7) is fixed with a guide post (20), and the four guide posts (20) are inserted into the corresponding limiting holes (13).

6. The core-pulling clamping mechanism for the injection mold of a dual-tone automotive lens according to claim 1, characterized in that, Multiple U-shaped locking modules (8) are fixedly installed on both sides of the lower injection mold (7), and multiple locking slots are opened on both sides of the upper injection mold (6). The multiple U-shaped locking modules (8) are engaged with the corresponding locking slots.

7. The core-pulling clamping mechanism for the injection mold of a dual-tone automotive lens according to claim 1, characterized in that, The upper injection mold (6) and the lower injection mold (7) are provided with multiple cooling water inlets (10) at equal intervals on their sides. Each of the multiple cooling water inlets (10) is fixedly connected to a cooling water pipe (9). The multiple cooling water pipes (9) are connected to an external water source through a water pump.

8. The core-pulling clamping mechanism for the injection mold of a dual-tone automotive lens according to claim 1, characterized in that, The upper fixing block (4) is fixedly provided at the top of the upper fixing seat (2), and multiple injection nozzles (5) are provided at the top of the upper fixing block (4). The multiple injection nozzles (5) are connected to the injection channel of the upper injection mold (6).

9. The core-pulling clamping mechanism for the injection mold of a dual-tone automotive lens according to claim 8, characterized in that, The upper fixed seat (2) has through holes at the four corners of its top end, and the lower fixed seat (1) has limit guide posts (3) fixed at the four corners of its top end. The limit guide posts (3) are inserted into the corresponding through holes.

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