Automobile LED light guide strip production die

Abstract

The utility model discloses an automobile LED light guide strip production mold, which relates to the technical field of automobile lamp molds, and comprises a lower mold seat, an upper mold seat and a movable mold core, the movable mold core is arranged right above the lower mold seat, an injection molding mechanism is arranged in the lower mold seat, and the lower mold seat is provided with an upper mold core and a lower mold core. The injection molding mechanism carries out molding treatment on an injection molding material through multiple sets of movable mold cores, molding production of multiple sets of LED light guide strips at a time is completed, a transposition mechanism is arranged over the upper mold base, and the transposition mechanism carries out injection molding treatment on the multiple sets of movable mold cores arranged on the upper mold base in sequence. And then the material is subjected to shaping treatment through the movable mold core and the fixed mold core. The heat of the fixed mold core is driven by the annularly arranged liquid storage cavity, and the mold shell is in full contact with the cooling liquid in a manner that the cooling liquid is in direct contact with the mold shell, so that the problem that the cooling time is relatively long due to the fact that a plastic part is cooled by the injection mold in a natural cooling manner is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamp moulds, in particular to a mould for producing automobile LED light guide strips. Background Art

[0002] Automobile light guide strips are used to transmit light in a directional manner to improve the light efficiency during vehicle driving and enhance the user's visual experience. Hard light guide strips are generally made by injection molding. Side light guide strips guide the light of the light guide strips. During the transmission process, they not only transmit the transmitted light from the incident end face of the light guide strip to the output end face, but also a part of the light is transmitted from the light guide strip coating, so that the entire light guide strip forms a circle of halo, achieving a glare effect.

[0003] The injection molding machine is used to maintain pressure in the injection mold, and the automotive LED light guide strips need to be cooled and formed before they can be separated. Due to the long pressure holding and cooling time, the injection molding process efficiency is low. In addition, during the cooling process, the single-sized fixed mold core cannot quickly absorb heat and cool down due to the small size of the light guide strip mold. Summary of the Invention

[0004] The purpose of the utility model is to provide a production mold for automotive LED light guide strips to solve the above-mentioned defects caused by the existing technology.

[0005] The mold for producing automotive LED light guide strips includes a lower mold base, an upper mold base and a movable mold core. The movable mold core is arranged directly above the lower mold base, and an injection molding mechanism is arranged inside the lower mold base. The injection molding mechanism shapes the injection molding material by setting multiple groups of movable mold cores to complete the one-time shaping production of multiple groups of LED light guide strips. A position change mechanism is arranged directly above the upper mold base. The position change mechanism performs injection molding on the multiple groups of movable mold cores arranged on the upper mold base in sequence, and then shapes the material through the movable mold core and the fixed mold core.

[0006] Preferably, the injection molding mechanism includes a drainage pipe fitting, an upper mold base, a hydraulic cylinder, a movable mold core, an injection through-hole, a liquid storage cavity and a fixed mold core. The drainage pipe fitting is connected to one side of the liquid storage cavity. The liquid storage cavity is distributed in an annular manner inside the lower mold base. The outer side of the lower mold base is connected to the fixed mold core. A movable mold core is arranged directly above the fixed mold core. The movable mold core is distributed in an annular manner on the outer side of the upper mold base. The upper part of the upper mold base is connected to the output end of the hydraulic cylinder. The top of the hydraulic cylinder is connected to the upper mold base.

[0007] Preferably, the upper mold base is connected to the fixed mold core through a ring-shaped movable mold core.

[0008] Preferably, the movable mold core is connected to the output end of the injection pump through an injection hole opened through the top.

[0009] Preferably, the shifting mechanism includes an injection pump, a shifting turntable, a driving housing, a motor, a driving gear and a driven gear. The injection pump is installed directly below the shifting turntable. The shaft directly above the shifting turntable is connected to the driven gear, and the driven gear is installed inside the driving housing. One side of the driven gear is meshed with the driving gear, and the output end of the motor is connected directly above the driving gear. The motor is installed at the top of the driving housing.

[0010] Preferably, the transposition turntable is meshedly connected to the driving gear via a driven gear connected to the top shaft.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. During use, the motor drives the driving gear to rotate, and then the driving gear engages with the driven gear set on one side, and the driven gear drives the indexing turntable set below the upper mold base to rotate, and then the injection position of the indexing turntable and the injection pump is adjusted, so as to facilitate the injection molding of multiple groups of sub-molds at one time. By rotating the angle, the device can realize continuous and rapid injection molding of automotive LED light guide strips at a low cost, greatly improving the working efficiency and safety of existing injection molding equipment.

[0013] 2. The heat of multiple fixed mold cores is driven by the annular liquid storage cavity. The coolant is in direct contact with the mold shell, so that the mold shell and the coolant are fully in contact, the heat conduction effect is improved, and the problem of long cooling time caused by the existing injection mold cooling the plastic parts by natural cooling is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the top structure of the upper mold base in the present invention.

[0016] Figure 3 This is a schematic diagram of the top-sectional structure of the lower mold base in the present invention.

[0017] Figure 4 This is a schematic diagram of the internal structure of the drive box in the present utility model.

[0018] Figure 5 This is a schematic diagram of the top view of the transposition turntable in the utility model

[0019] in:

[0020] 1. Lower mold base; 2. Drain pipe fittings; 3. Upper mold base; 4. Injection mechanism; 5. Injection pump; 6. Shifting turntable; 7. Shifting mechanism; 8. Drive housing; 9. Motor; 10. Hydraulic cylinder; 11. Moving mold core; 12. Injection through hole; 13. Liquid storage cavity; 14. Fixed mold core; 15. Driving gear; 16. Driven gear. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5 As shown, the automotive LED light guide strip production mold includes a lower mold base 1, an upper mold base 3 and a movable mold core 11. The movable mold core 11 is arranged directly above the lower mold base 1, and an injection molding mechanism 4 is arranged inside the lower mold base 1. The injection molding mechanism 4 shapes the injection molding material by setting multiple groups of movable mold cores 11 to complete the one-time shaping production of multiple groups of LED light guide strips. A position change mechanism 7 is arranged directly above the upper mold base 3. The position change mechanism 7 performs injection molding on the multiple groups of movable mold cores 11 set on the upper mold base 3 in sequence, and then shapes the material through the movable mold core 11 and the fixed mold core 14.

[0023] In this embodiment, the injection molding mechanism 4 includes a drainage pipe fitting 2, an upper mold base 3, a hydraulic cylinder 10, a movable mold core 11, an injection through-hole 12, a liquid storage cavity 13 and a fixed mold core 14. The drainage pipe fitting 2 is connected to one side of the liquid storage cavity 13. The liquid storage cavity 13 is distributed in an annular manner inside the lower mold base 1. The outer side of the lower mold base 1 is connected to the fixed mold core 14. The movable mold core 11 is arranged directly above the fixed mold core 14. The movable mold core 11 is distributed in an annular manner on the outer side of the upper mold base 3. The output end of the hydraulic cylinder 10 is connected directly above the upper mold base 3. The top of the hydraulic cylinder 10 is connected to the upper mold base 3.

[0024] In this embodiment, the upper mold base 3 is connected to the fixed mold core 14 through the annularly connected movable mold core 11 , and contacts the fixed mold core 14 through the movable mold core 11 .

[0025] In this embodiment, the movable mold core 11 is connected to the output end of the injection pump 5 through an injection hole 12 opened through the top, and the sealed chamber is used to cool the material through the injection hole 12 to complete the shaping of the material.

[0026] In this embodiment, the transposition mechanism 7 includes an injection pump 5, a transposition turntable 6, a drive housing 8, a motor 9, a driving gear 15 and a driven gear 16. The injection pump 5 is installed directly below the transposition turntable 6, and the shaft directly above the transposition turntable 6 is connected to the driven gear 16. The driven gear 16 is installed inside the drive housing 8. One side of the driven gear 16 is meshed with the driving gear 15. The output end of the motor 9 is connected directly above the driving gear 15. The motor 9 is installed at the top of the drive housing 8. The accuracy of the equipment control is controlled by the gear ratio of the driving gear 15 and the driven gear 16.

[0027] In this embodiment, the shifting turntable 6 is meshed with the driving gear 15 via a driven gear 16 connected to the top shaft. The driven gear 16 provided at the top of the shifting turntable 6 rotates, thereby dynamically adjusting the position of the injection pump 5 .

[0028] The actual application of this automotive LED light guide production mold includes the following work content:

[0029] Step 1: During use, coolant is injected into the interior of the lower mold base 1, and then the hydraulic cylinder 10 is directly opened. The hydraulic cylinder 10 vertically drives the upper mold base 3 and the movable mold core 11 to move vertically to the surface of the fixed mold core 14 to make contact, so that the movable mold core 11 and the fixed mold core 14 form a sealed injection cavity. Then, the output end of the injection pump 5 is engaged with the surface of the injection through-hole 12, and then the injection pump 5 injects the hot-melt material into the sealed injection cavity formed by the movable mold core 11 and the fixed mold core 14;

[0030] Step 2: After completing the shaping of the cavities of one set of movable mold core 11 and fixed mold core 14, the operator can turn on the motor 9, use the motor 9 to drive the driving gear 15 to rotate, use the driving gear 15 to drive the driven gear 16 on one side to rotate, and drive the indexing turntable 6 and the injection pump 5 to rotate through the driven gear 16. When the injection pump 5 moves to the movable mold core 11 and fixed mold core 14 on the other side, the internal cavities of the movable mold core 11 and the fixed mold core 14 are injection molded again;

[0031] Step 3: The operator injects the pump body into the liquid storage cavity 13, and the circulating liquid cools the surfaces of the movable mold core 11 and the fixed mold core 14. The liquid that has absorbed heat is directly discharged from the interior of the lower mold base 1 through the drainage pipe 2 provided on one side, thereby completing the cooling of the movable mold core 11 and the fixed mold core 14.

[0032] Step 4: After completing the injection molding and cooling of multiple groups of movable mold cores 11 and fixed mold cores 14, the operator opens the hydraulic cylinder 10 and uses the hydraulic cylinder 10 to drive the upper mold base 3 and the movable mold core 11 to move vertically upward, thereby separating the movable mold core 11 from the fixed mold core 14, thereby facilitating the direct removal of the injected LED light guide strip inside the fixed mold core 14.

[0033] Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. Automotive LED light guide production mold, characterized by: The invention comprises a lower mold base (1), an upper mold base (3) and a movable mold core (11); a movable mold core (11) is arranged directly above the lower mold base (1); an injection molding mechanism (4) is arranged inside the lower mold base (1); the injection molding mechanism (4) performs shaping processing on the injection molding material by arranging multiple groups of movable mold cores (11), thereby completing the one-time shaping production of multiple groups of LED light guide strips; a position change mechanism (7) is arranged directly above the upper mold base (3); the position change mechanism (7) performs injection molding processing on the multiple groups of movable mold cores (11) arranged on the upper mold base (3) in sequence, and then performs shaping processing on the material through the movable mold core (11) and the fixed mold core (14).

2. The automotive LED light guide strip production mold according to claim 1, characterized in that: The injection molding mechanism (4) comprises a drainage pipe fitting (2), an upper mold base (3), a hydraulic oil cylinder (10), a movable mold core (11), an injection through hole (12), a liquid storage cavity (13) and a fixed mold core (14); the drainage pipe fitting (2) is connected to one side of the liquid storage cavity (13); the liquid storage cavity (13) is annularly distributed inside the lower mold base (1); the outer side of the lower mold base (1) is connected to the fixed mold core (14); a movable mold core (11) is arranged directly above the fixed mold core (14); the movable mold core (11) is annularly distributed outside the upper mold base (3); the upper side of the upper mold base (3) is connected to the output end of the hydraulic oil cylinder (10); and the top end of the hydraulic oil cylinder (10) is connected to the upper mold base (3).

3. The automotive LED light guide strip production mold according to claim 2, characterized in that: The upper mold base (3) is connected to the fixed mold core (14) via a ring-shaped movable mold core (11).

4. The automotive LED light guide strip production mold according to claim 2, characterized in that: The movable mold core (11) is connected to the output end of the injection pump (5) via an injection through hole (12) provided through the top end.

5. The automotive LED light guide strip production mold according to claim 1, characterized in that: The shifting mechanism (7) comprises an injection pump (5), a shifting turntable (6), a driving housing (8), a motor (9), a driving gear (15) and a driven gear (16). The injection pump (5) is installed directly below the shifting turntable (6). A driven gear (16) is connected to a shaft directly above the shifting turntable (6). The driven gear (16) is installed inside the driving housing (8). One side of the driven gear (16) is meshedly connected to the driving gear (15). The output end of the motor (9) is connected directly above the driving gear (15). The motor (9) is installed at the top of the driving housing (8).

6. The automotive LED light guide strip production mold according to claim 5, characterized in that: The transposition turntable (6) is meshedly connected to a driving gear (15) via a driven gear (16) connected to a top shaft.

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