Injection mold and method for machining automobile lamp reflecting mirror

Abstract

The invention discloses an injection mold and method for machining an automobile lamp reflector, and relates to the technical field of automobile lamp machining. The module forming unit comprises a forming assembly and a discharging assembly; and the cooling unit comprises a liquid guide assembly and a heat dissipation assembly, the liquid guide assembly is used for achieving rapid heat dissipation and cooling of the forming module, the heat dissipation assembly is used for achieving external heat dissipation of the liquid guide assembly, and the cooling effect of the liquid guide assembly is improved. The injection molding device has the beneficial effects that efficient injection molding of the automobile lamp reflector can be achieved, rapid cooling of a molded mold can be achieved after injection molding, meanwhile, the cooling strength of the molded mold can be automatically adjusted according to the temperature of the molded mold, targeted cooling is achieved, damage caused by too fast temperature change during cooling of the molded mold is effectively avoided, and the service life of the molded mold is prolonged. And the molding effect of the injection mold is better.

Description

Technical Field

[0001] The invention relates to the technical field of automobile lamp processing, and in particular to an injection mold and a method for processing an automobile lamp reflector. Background Art

[0002] Car headlight reflectors are important components in car lamps. They are mainly used to reflect external light to a specific direction to ensure that car owners get good lighting effects when driving at night. Car headlight reflectors are usually processed and formed by injection molding.

[0003] Existing injection molds use a variety of methods to achieve the injection molding of headlight reflectors, such as an automobile headlight reflector injection mold with publication number CN212446191U, which includes a mold cooling box and a mold body, wherein a water immersion tank is provided in the mold cooling box, and two openings are provided at the top of the water immersion tank, wherein the mold body is respectively arranged at the openings of the water immersion tank, and guide pipe boxes are respectively installed at the two openings of the water immersion tank, wherein the two guide pipe boxes are respectively arranged at the mutually distant sides of the opening of the water immersion tank, and one end of the guide pipe box is vertically installed at the bottom of the water immersion tank, and the other end passes through the water immersion tank; When the existing injection mold is used for the injection molding of the headlight reflector, the mold is usually cooled by immersing or spraying cooling water. This cooling method will cause more cooling water to adhere to the outside of the mold, affecting the service life of the mold. For example, the above-mentioned referenced prior art adopts the method of directly immersing the mold in cooling water to achieve cooling. This cooling method will cause more cooling water to adhere to the outside of the mold and cannot be removed, affecting the service life of the mold. In addition, the cooling water cannot flow during immersion, resulting in the inability to adjust the cooling intensity, that is, the cooling intensity cannot be automatically adjusted according to the temperature of the mold. At the same time, this cooling method requires the position of the mold to be adjusted continuously, which will seriously affect the injection molding efficiency of the injection molded parts and has certain limitations. Therefore, it is urgent to design an injection mold and method for processing automobile headlight reflectors to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an injection mold and method for processing a reflector for an automobile lamp, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the present invention is implemented by the following technical scheme: an injection mold for processing a car headlight reflector, the injection mold is arranged in an injection molding box, the injection molding box is used for injection molding the car headlight reflector, the injection mold comprises: The module molding unit is arranged on the injection molding box and is used to realize the injection molding of the headlight reflector and the unloading of the molding mold, and includes a molding assembly and a unloading assembly, wherein the molding assembly is used to realize the injection molding of the injection mold of the headlight reflector, and the unloading assembly is used to realize the automatic unloading of the molding mold after the injection molding; The cooling unit is arranged in the module molding unit and is used to achieve rapid cooling and temperature control protection of the molding module during the injection molding process. It includes a liquid guiding component and a heat dissipation component. The liquid guiding component is used to achieve rapid heat dissipation and cooling of the molding module, and the heat dissipation component is used to achieve external heat dissipation of the liquid guiding component to improve the cooling effect of the liquid guiding component.

[0006] Preferably, the injection molding box is provided with an injection molding assembly, and the injection molding assembly is used to realize the placement, melting and stable injection of the injection molding raw materials; The lower part of the injection molding box is provided with a base for support, and the base is provided with an oblique discharge port for discharging the headlight reflector molding module; A control console is arranged on the upper part of the injection molding box, and the control console is used to control the opening and closing and operation status of the injection molding components, the module molding unit and the cooling unit, so as to realize the automatic and efficient injection molding of the vehicle lamp reflector molding module.

[0007] Preferably, the injection molding component includes a melt injector arranged in an injection molding box, and a feed hopper for feeding injection molding raw materials is provided on the melt injector. The melt injector is used to heat and melt the injection molding raw materials, and inject the molten injection material into the mold molding unit at a stable pressure and speed, so as to realize automatic injection of the molding mold injection material.

[0008] Preferably, the molding assembly includes a plurality of limit slide bars fixedly mounted on the injection box, and a movable mold box is slidably mounted on the plurality of limit slide bars, a static mold box is fixedly mounted on the plurality of limit slide bars, a molding mold 1 is snap-fitted into the movable mold box, a molding mold 2 matching with the molding mold 1 is snap-fitted into the static mold box, and the molding mold 1 matches with the molten injector, and a positioning mechanism is mounted on the movable mold box.

[0009] Preferably, the positioning mechanism includes a hydraulic push rod fixedly installed in the injection molding box, and a push shaft is fixedly installed on the driving end of the hydraulic push rod, and an elastic push rod is fixedly installed between the push shaft and the movable mold box, two electromagnetic positioning pins are fixedly installed on the movable mold box, and two electromagnetic positioning rings matching the corresponding electromagnetic positioning pins are fixedly installed on the static mold box.

[0010] Preferably, the unloading assembly includes a trigger rod fixedly mounted on the pushing shaft, a trigger block is slidably mounted on the movable mold box, a unloading rack for pushing the molding module out is slidably mounted on the molding mold, and the upper part of the unloading rack is in contact with the trigger block, a return spring is fixedly mounted between the unloading rack and the molding mold, an electric telescopic rod is fixedly mounted on the injection molding box, and a positioning rod matching the movable mold box is fixedly mounted on the electric telescopic rod.

[0011] Preferably, the liquid guiding assembly includes a liquid storage tank fixedly installed in the injection molding box, and the liquid storage tank stores coolant, a liquid pushing plate for squeezing the coolant is slidably installed in the liquid storage tank, and a reciprocating push rod is slidably installed on the liquid pushing plate, a linkage plate is fixedly installed between the reciprocating push rod and the push shaft, and a cooling mechanism is installed on the liquid storage tank.

[0012] Preferably, the cooling mechanism includes a plurality of condensation ring tubes fixedly installed in the dynamic mold box, and the plurality of condensation ring tubes are interconnected, an elastic liquid guide tube is fixedly connected between the condensation ring tube and the liquid storage tank, and a temperature sensing control valve is arranged on the elastic liquid guide tube, an elastic liquid outlet pipe is fixedly connected to the condensation ring tube, and the end of the elastic liquid outlet pipe is fixedly connected to a liquid storage cylinder, and the liquid storage cylinder is fixed in the injection molding box through a support rod.

[0013] Preferably, the heat dissipation assembly comprises a support frame fixedly mounted on the outside of the liquid storage tank, a driven nut plate is rotatably mounted in the support frame, a threaded rod is fixedly mounted on the reciprocating push rod, and the threaded rod cooperates with the driven nut plate; A linkage shaft is rotatably installed in the injection molding box through a support plate, and a transmission belt is sleeved between the linkage shaft and the driven nut plate. A heat dissipation cylinder is fixedly installed on the outside of the liquid storage cylinder, and a plurality of ventilation holes are opened on the heat dissipation cylinder. A fan wheel is fixedly installed on the linkage shaft, and the fan wheel is located in the heat dissipation cylinder.

[0014] An injection molding method for processing a reflector for a vehicle headlight, used for the above-mentioned injection molding device for processing a reflector for a vehicle headlight, comprises the following steps: S1, placing the injection molding raw material into the injection molding component, and after heating and melting, conveying and injecting it into the molding component to complete the injection molding of the automobile headlight reflector injection mold; S2, starting the liquid guide component in the cooling unit to cool the injection mold in the molding component, and automatically adjusting the cooling intensity according to the temperature of the injection mold; S3, starting the heat dissipation component to perform external heat dissipation on the heat conductive component; S4. After the injection mold is cooled and molded, the unloading assembly is started to automatically discharge the injection mold.

[0015] The present invention provides an injection mold and method for processing a reflector for a vehicle headlight. The invention has the following beneficial effects: 1. When the injection mold is used to inject automobile headlight reflectors, the cooperation of the hydraulic push rod and the liquid guide assembly can form circulating cooling water outside the molding module, and can quickly absorb the heat of the molding module during the flow, so as to achieve efficient cooling and molding of the molding module. The flow rate of the cooling water can be adjusted according to the temperature of the molding module, thereby controlling the cooling intensity, achieving uniform cooling of the molding module, and avoiding damage caused by excessive temperature changes of the molding module during cooling.

[0016] 2. When the injection mold is used to inject automobile headlight reflectors, the molded module can be cooled and the circulating cooling water can be specifically dissipated while the molded module is being cooled, thereby realizing rapid cooling of the cooling water and further improving the cooling effect of the cooling water. The heat dissipation intensity can be specifically adjusted according to the temperature of the molded module, thereby further improving the cooling efficiency.

[0017] 3. When the injection mold is used to inject the automobile headlight reflector, after the molding mold is cooled, the molding mold can be automatically ejected and demolded by the cooperation of the hydraulic push rod, which effectively improves the demolding efficiency of the molding mold, and will not cause damage to the molding mold during demolding, and the demolding effect is better.

[0018] 4. When the injection mold is used for the injection molding of the automobile headlight reflector, the cooperation between the molten injector and the control console can realize the efficient heating and melting of the injection molding materials, and the molten raw materials can be injected into the molding components at a stable pressure and speed, so that the injection molding stability is better and the molded reflector molding module is more delicate and uniform.

[0019] 5. When the injection mold is used for the injection molding of the automobile headlight reflector, the cooperation between the hydraulic push rod and the movable mold box can realize the rapid movement of the molding mold 1, so that the molding mold 1 and the molding mold 2 are tightly extruded and fitted, thereby improving the sealing during injection molding. After molding, the molding mold 1 and the molding mold 2 can be quickly separated to realize the rapid demolding of the molding mold.

[0020] In summary, the present invention can realize efficient injection molding of automobile headlight reflectors, and can realize rapid cooling of the molding module after injection molding. At the same time, the cooling intensity of the molding module can be automatically adjusted according to the temperature of the molding module to realize targeted cooling and effectively avoid damage caused by excessive temperature changes during cooling of the molding module, and the molding effect of the injection molding module is better.

[0021] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic structural diagram of an injection mold for processing a reflector for a car lamp proposed by the present invention; Figure 2 for Figure 1 Schematic diagram of the upper structure of the injection molding box; Figure 3 for Figure 2 The structural schematic diagram of the middle melt injector; Figure 4 for Figure 2 Schematic diagram of the internal structure of the injection molding box; Figure 5 for Figure 4 Schematic diagram of the internal structure after removing the injection molding box; Figure 6 for Figure 5 Schematic diagram of the exploded structure of the upper part of the movable mold box and the static mold box; Figure 7 for Figure 6 Schematic diagram of the structure after rotating a certain angle; Figure 8 for Figure 5 Schematic diagram of the structure of the hydraulic push rod and the movable mold box; Fig. 9 for Figure 8 Schematic diagram of the internal structure after removing the dynamic mold box; Fig.10 for Fig. 9 Schematic diagram of the structure of the hydraulic push rod and the liquid storage tank; Fig.11 for Fig.10 Schematic diagram of the internal structure of the middle liquid storage tank; Fig.12 for Fig. 9 A schematic diagram of the structure of the heat dissipation component; Fig.13 for Fig.12 Schematic diagram of structural decomposition; Fig.14 It is a structural schematic diagram of the unloading assembly in the present invention.

[0023] In the figure: 1 base, 2 injection molding box, 3 discharge oblique mouth, 4 control console, 5 melt injector, 6 feed hopper, 7 dynamic mold box, 8 static mold box, 9 limit slide bar, 10 hydraulic push rod, 11 push shaft, 12 molding mold one, 13 molding mold two, 14 heat dissipation cylinder, 15 liquid storage box, 16 electromagnetic positioning pin, 17 electromagnetic positioning ring, 18 elastic push rod, 19 elastic liquid guide tube, 20 condensation ring tube, 21 elastic liquid discharge tube, 22 liquid storage cylinder, 23 linkage plate, 24 reciprocating push rod, 25 liquid push plate, 26 linkage shaft, 27 support frame, 28 threaded rod, 29 driven nut plate, 30 transmission belt, 31 fan impeller, 32 ventilation hole, 33 trigger rod, 34 trigger block, 35 unloading rack, 36 reset spring, 37 temperature sensing control valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Example 1: Reference Figure 1-Figure 2 , an injection mold for processing a car headlight reflector, the injection mold is arranged in an injection molding box 2, the injection molding box 2 is used for injection molding of the car headlight reflector, the lower part of the injection molding box 2 is provided with a base 1 for support, and the base 1 is provided with a discharge bevel 3 for discharging the headlight reflector molding module; The molded modules that have been completed by injection molding in the injection molding box 2 will fall into the discharging bevel 3 in the base 1, and the molded modules can be taken out through the discharging bevel 3, which is more convenient and saves trouble.

[0026] The injection molding assembly is arranged on the injection molding box 2, and is used to realize the placement, melting and stable injection of the injection molding raw materials, realize the efficient heating and melting of the injection molding raw materials, and inject and export the molten raw materials at a stable pressure and speed, so as to improve the injection molding stability.

[0027] The injection mold also includes: The module molding unit is arranged on the injection molding box 2, and is used to realize the injection molding of the headlight reflector and the unloading of the molding mold, realize the automatic combination molding of the injection molding cavity of the headlight reflector, and injection mold the reflector lamp molding module in the injection molding cavity with the cooperation of the injection molding component, and realize automatic unloading after the molding module is cooled and molded; The cooling unit is arranged in the module molding unit, and is used to realize the rapid cooling and temperature control protection of the molding module during the injection molding process. It realizes automatic cooling according to the temperature change during the molding process of the molding module, which can not only improve the cooling efficiency, but also avoid the molding module from being damaged due to excessive cooling speed, effectively protect the molding module, and reduce the injection defective rate of the molding module.

[0028] A control console 4 is provided on the upper part of the injection molding box 2, and the control console 4 is used to control the opening and closing and operating states of the injection molding components, the module molding unit and the cooling unit, so as to realize the automated and efficient injection molding of the headlight reflector molding module.

[0029] Example 2: Reference Figure 1-Figure 3 , the technical solution of this embodiment is different from that of the first embodiment in that: the injection molding assembly includes a molten injection device 5 arranged in the injection molding box 2, and the molten injection device 5 is provided with a feeding hopper 6 for feeding the injection molding raw material; During injection molding, a certain amount of injection molding raw material is poured into the feed hopper 6 and transferred to the molten injector 5 through the feed hopper 6 .

[0030] The melt injector 5 is used to heat and melt the injection molding raw material, and inject the molten injection material into the mold molding unit at a stable pressure and speed to realize automatic injection of the mold molding injection material; The melt injector 5 is a device commonly used in the prior art for heating, melting and conveying molten materials. Its basic working principle is to heat and melt the injection raw materials into a molten liquid state, and convey the molten raw materials and inject them through the injection tube at the end. The heating temperature and injection pressure can be controlled according to actual conditions. This part is the prior art and will not be elaborated on here.

[0031] Example 3: Reference Figure 1-Figure 2 , Figure 4-Figure 8 as well as Fig.14 The difference between this embodiment and the second embodiment is that the module molding unit includes a molding component and a discharge component, wherein the molding component is used to realize the injection molding of the injection molding module of the headlight reflector, and the discharge component is used to realize the automatic discharge of the molding module after injection molding; The molding assembly includes a plurality of limit slide bars 9 fixedly mounted on the injection molding box 2, and a movable mold box 7 is slidably mounted on the plurality of limit slide bars 9, a static mold box 8 is fixedly mounted on the plurality of limit slide bars 9, a molding mold 12 is clamped and mounted in the movable mold box 7, a molding mold 2 13 matching the molding mold 12 is clamped and mounted on the static mold box 8, and the molding mold 12 matches the molten injector 5; The movable mold box 7 can slide back and forth between multiple limit slide bars 9, and the static mold box 8 is fixed on multiple limit slide bars 9 and cannot slide. The static mold box 8 is used to limit the movable mold box 7 so that it cannot continue to move when it moves to the static mold box 8.

[0032] A positioning mechanism is installed on the movable mold box 7, and the positioning mechanism includes a hydraulic push rod 10 fixedly installed in the injection molding box 2, and a push shaft 11 is fixedly installed on the driving end of the hydraulic push rod 10, and an elastic push rod 18 is fixedly installed between the push shaft 11 and the movable mold box 7; The hydraulic push rod 10 is started to drive the push shaft 11 to move. When the push shaft 11 moves, it will drive the elastic push rod 18 thereon to move. When the elastic push rod 18 moves, it will drive the movable mold box 7 at its end to move, so that the movable mold box 7 moves to be squeezed and fitted with the static mold box 8.

[0033] Two electromagnetic positioning pins 16 are fixedly installed on the movable mold box 7, and two electromagnetic positioning rings 17 matched with the corresponding electromagnetic positioning pins 16 are fixedly installed on the static mold box 8. When the movable mold box 7 moves, the electromagnetic positioning pins 16 on it will be engaged with the electromagnetic positioning rings 17 on the static mold box 8, and the electromagnetic positioning pins 16 and the electromagnetic positioning rings 17 will be energized at the same time and generate magnetism, so that the electromagnetic positioning pins 16 are tightly adsorbed on the electromagnetic positioning rings 17, completing the positioning of the electromagnetic positioning pins 16, and then completing the positioning of the movable mold box 7; After positioning is completed, the movable mold box 7 cannot move at this time, that is, no matter the hydraulic push rod 10 continues to drive the push shaft 11 forward or drives the push shaft 11 to move backward, the movable mold box 7 cannot move, thereby ensuring the stability of the injection molding process.

[0034] When the movable mold box 7 is engaged with the static mold box 8, the molding mold 12 on the movable mold box 7 will be engaged with the molding mold 2 13 on the static mold box 8, so that the molding mold 12 and the molding mold 2 13 are completely engaged. At this time, the cavity formed between the molding mold 12 and the molding mold 2 13 is the molding cavity. Then, the molten injector 5 can be started to inject the injection molten raw material into the molding cavity through the molding mold 2 13, so that the molding module is injection molded in the molding cavity.

[0035] In a further embodiment, the unloading assembly includes a trigger rod 33 fixedly mounted on the pushing shaft 11, a trigger block 34 is slidably mounted on the movable mold box 7, a unloading rack 35 for pushing the molding mold out is slidably mounted on the molding mold 12, and the upper part of the unloading rack 35 is in contact with the trigger block 34, a return spring 36 is fixedly mounted between the unloading rack 35 and the molding mold 12, and the lower end of the unloading rack 35 is located in the molding cavity on the molding mold 12; When the molded part in the mold cavity is cooled and molded, the electromagnetic positioning pin 16 and the electromagnetic positioning ring 17 can be released to unlock the movable mold box 7, and then the hydraulic push rod 10 drives the movable mold box 7 back to its original position to separate it from the static mold box 8, completing the demoulding preparation work; The injection molding box 2 is fixedly provided with an electric telescopic rod, and a positioning rod matched with the movable mold box 7 is fixedly provided on the electric telescopic rod. Then, the electric telescopic rod is started to drive the positioning rod to move, so that the positioning rod moves to the front of the movable mold box 7 to limit the movable mold box 7. At this time, the hydraulic push rod 10 is started again to drive the push shaft 11 to push forward. When the push shaft 11 is pushed forward, the movable mold box 7 cannot continue to move due to the obstruction of the positioning rod, that is, when the push shaft 11 is pushed forward, the elastic push rod 18 is compressed; When the pushing shaft 11 is pushed forward, the movable mold box 7 cannot move, but the trigger rod 33 will be driven forward. After the trigger rod 33 moves forward for a certain distance, it will contact the trigger block 34 in the movable mold box 7. When it continues to be pushed forward, it will push the trigger block 34 forward. When the trigger block 34 moves forward, it will drive the unloading rack 35 that is in contact with it to move forward. When the unloading rack 35 moves forward, its lower end will penetrate into the molding cavity on the molding mold 12, and the molding module in the molding cavity will be automatically ejected, thus completing the automatic ejection and demolding of the molding module. After demolding, the molding module will fall into the discharge bevel 3 on the base 1, and the molding module can be taken out through the discharge bevel 3.

[0036] Example 4: Reference Figure 1-Figure 2 , Figure 4 as well as Figure 8-Figure 13 , the technical solution of this embodiment is different from that of the third embodiment in that: the cooling unit includes a liquid guide component and a heat dissipation component, wherein the liquid guide component is used to realize rapid heat dissipation and cooling of the molding module, and the heat dissipation component is used to realize external heat dissipation of the liquid guide component, thereby improving the cooling effect of the liquid guide component; The liquid guide assembly includes a liquid storage tank 15 fixedly installed in the injection molding box 2, and the liquid storage tank 15 stores coolant, a liquid push plate 25 for squeezing the coolant is slidably installed in the liquid storage tank 15, and a reciprocating push rod 24 is slidably installed on the liquid push plate 25, and a linkage plate 23 is fixedly installed between the reciprocating push rod 24 and the push shaft 11; When the molding module is being injection molded, the hydraulic push rod 10 is started again to drive the push shaft 11 forward (when the push shaft 11 is pushed forward, the movable mold box 7 cannot be pushed forward due to the obstruction of the static mold box 8, that is, the forward pushing or retracting of the push shaft 11 will not affect the movable mold box 7). When the push shaft 11 is pushed forward, it will drive the linkage plate 23 forward. When the linkage plate 23 is pushed forward, it will drive the reciprocating push rod 24 thereon forward, thereby driving the liquid push plate 25 to push forward in the liquid storage tank 15.

[0037] A cooling mechanism is installed on the liquid storage box 15, and the cooling mechanism includes a plurality of condensing ring pipes 20 fixedly installed in the dynamic mold box 7, and the plurality of condensing ring pipes 20 are connected to each other, and an elastic liquid guide pipe 19 is fixedly connected between the condensing ring pipe 20 and the liquid storage box 15, and an elastic liquid outlet pipe 21 is fixedly connected to the condensing ring pipe 20, and the end of the elastic liquid outlet pipe 21 is fixedly connected to a liquid storage cylinder 22, and the liquid storage cylinder 22 is fixed in the injection molding box 2 through a support rod; When the liquid push plate 25 is pushed forward in the liquid storage tank 15, the coolant in the liquid storage tank 15 is injected into the multiple condensation ring tubes 20 through the elastic liquid guide tube 19, and the coolant is injected into the elastic liquid outlet tube 21 through the condensation ring tube 20, and finally injected into the liquid storage cylinder 22; After the hydraulic push rod 10 drives the push shaft 11 forward for a certain distance, it will drive the push shaft 11 to move back to its original position. The hydraulic push rod 10 repeatedly drives the push shaft 11 to move back and forth, thereby driving the reciprocating push rod 24 to move back and forth. The reciprocating push rod 24 will drive the liquid push plate 25 to move back and forth. When the liquid push plate 25 moves forward, the coolant will be injected into the liquid storage cylinder 22 through the multiple condensation ring tubes 20. When the liquid push plate 25 moves back, the coolant in the liquid storage cylinder 22 will be sucked back into the liquid storage tank 15 through the multiple condensation ring tubes 20. Repeat the above steps to achieve the reciprocating flow of the coolant in the multiple condensation ring tubes 20. A plurality of condensing ring tubes 20 are arranged in the dynamic mold box 7 and are located outside the molding mold 12. That is, when the coolant in the condensing ring tubes 20 flows, the heat on the molding module in the molding mold 12 will be quickly absorbed and taken away, thereby realizing rapid cooling of the molding module.

[0038] A temperature sensing control valve 37 is provided on the elastic liquid guiding tube 19, and a temperature sensor is provided in the dynamic mold box 7. The temperature sensing control valve 37 is used to sense the temperature of the coolant in the elastic liquid guiding tube 19, and the temperature sensor is used to sense the temperature of the molding module. The cooling intensity required for the molding module can be judged by the temperature and cooling rate of the molding module and the heating rate of the coolant. That is, the cooling intensity is gradually reduced as the temperature of the molding module decreases, thereby avoiding the molding module from being damaged due to excessive cooling rate.

[0039] The reciprocating speed of the push shaft 11 is adjusted by controlling the pushing speed of the hydraulic push rod 10, thereby controlling the pushing and returning speeds of the push plate 25, thereby controlling the flow speed of the coolant. The faster the reciprocating speed of the push plate 25, the faster the flow speed of the coolant, the better the cooling and heat absorption effect, and the stronger the cooling intensity. The cooling intensity can be adjusted by the pushing speed of the hydraulic pushing rod 10, and the cooling intensity can be gradually reduced according to the temperature change of the molding module to achieve targeted cooling, avoid damage to the molding module due to excessive cooling speed, and improve the molding quality of the molding module.

[0040] In a further embodiment, the heat dissipation assembly includes a support frame 27 fixedly mounted on the outside of the liquid storage tank 15, a driven nut plate 29 is rotatably mounted in the support frame 27, a threaded rod 28 is fixedly mounted on the reciprocating push rod 24, and the threaded rod 28 cooperates with the driven nut plate 29; When the reciprocating push rod 24 moves back and forth, it will drive the threaded rod 28 on it to move back and forth. Since the driven nut plate 29 is threadedly matched with the threaded rod 28, and the driven nut plate 29 can only rotate but not move under the limiting effect of the support frame 27, when the threaded rod 28 moves back and forth, it will drive the driven nut plate 29 to rotate back and forth on the support frame 27, and then when the reciprocating push rod 24 moves back and forth, the driven nut plate 29 will rotate back and forth synchronously.

[0041] A linkage shaft 26 is rotatably mounted in the injection molding box 2 through a support plate, and a transmission belt 30 is sleeved between the linkage shaft 26 and the driven nut plate 29. A heat dissipation cylinder 14 is fixedly mounted on the outside of the liquid storage cylinder 22, and a plurality of ventilation holes 32 are opened on the heat dissipation cylinder 14. A fan impeller 31 is fixedly mounted on the linkage shaft 26, and the fan impeller 31 is located in the heat dissipation cylinder 14. When the driven nut plate 29 rotates, it drives the linkage shaft 26 to rotate under the action of the transmission belt 30. When the linkage shaft 26 rotates, it drives the impeller 31 to rotate in the heat dissipation tube 14. When the impeller 31 rotates forward and reversely, a positive wind force airflow or a reverse negative pressure airflow is generated in the heat dissipation tube 14. Whether it is a positive airflow or a reverse airflow, it can promote the air flow in the heat dissipation tube 14, so as to achieve the internal cooling of the heat dissipation tube 14. Since the liquid storage cylinder 22 is located in the heat dissipation cylinder 14, the liquid storage cylinder 22 can be cooled by blowing air through the heat dissipation cylinder 14, thereby cooling the coolant in the liquid storage cylinder 22, thereby accelerating the cooling speed of the coolant, thereby increasing the speed at which the coolant absorbs the heat of the molding module, and further improving the heat absorption and cooling effect of the coolant; The rotation speed of the impeller 31 is positively correlated with the pushing speed of the pushing shaft 11, that is, it is correlated with the cooling intensity, that is, the heat dissipation effect of the heat dissipation tube 14 is related to the cooling intensity. The higher the cooling intensity, the faster the rotation speed of the impeller 31, and the better the heat dissipation effect of the heat dissipation tube 14. The lower the cooling intensity, the slower the rotation speed of the impeller 31, and the heat dissipation effect of the heat dissipation tube 14 is relatively reduced, thereby achieving targeted heat dissipation, effectively improving the heat dissipation effect, and avoiding energy loss.

[0042] The specific injection molding method of this injection molding device is as follows: First, the hydraulic push rod 10 is started to drive the push shaft 11 to move. The movement of the push shaft 11 drives the elastic push rod 18 and the movable mold box 7 to move, so that the movable mold box 7 moves to be pressed and fitted with the static mold box 8, and the movable mold box 7 is positioned by the electromagnetic positioning pin 16 and the electromagnetic positioning ring 17 so that it cannot move; When the movable mold box 7 is engaged with the static mold box 8, the molding mold 1 12 on the movable mold box 7 will be engaged with the molding mold 2 13 on the static mold box 8, and then the injection raw material is poured into the feed hopper 6, and transmitted to the molten injector 5 through the feed hopper 6. Then the molten injector 5 is started to inject the injection molten raw material into the molding cavity through the molding mold 2 13, so that the molding module is injection molded in the molding cavity.

[0043] After the molding module is formed, the hydraulic push rod 10 is started to drive the push shaft 11 to move back and forth, and the linkage plate 23 and the reciprocating push rod 24 can drive the push plate 25 to move back and forth. When the push plate 25 moves forward, the coolant will be injected into the liquid storage cylinder 22 through multiple condensation ring tubes 20, and when the push plate 25 moves back, the coolant in the liquid storage cylinder 22 will be sucked back into the liquid storage tank 15 through multiple condensation ring tubes 20. Repeat the above steps to achieve reciprocating flow of the coolant in the multiple condensation ring tubes 20. During the flow of the coolant in the condensation ring tubes 20, the heat on the molding module in the molding mold 12 will be quickly absorbed and taken away, thereby achieving rapid cooling and cooling of the molding module.

[0044] The embodiment of the present invention further provides an injection molding method for processing a vehicle headlight reflector, which is used for the above-mentioned injection molding device for processing a vehicle headlight reflector, and comprises the following steps: S1, placing the injection molding raw material into the injection molding component, and after heating and melting, conveying and injecting it into the molding component to complete the injection molding of the automobile headlight reflector injection mold; S2, starting the liquid guide component in the cooling unit to cool the injection mold in the molding component, and automatically adjusting the cooling intensity according to the temperature of the injection mold; S3, starting the heat dissipation component to perform external heat dissipation on the heat conductive component; S4. After the injection mold is cooled and molded, the unloading assembly is started to automatically discharge the injection mold.

[0045] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold for processing a car headlight reflector, the injection mold being arranged in an injection molding box (2), the injection molding box (2) being used for injection molding a car headlight reflector, characterized in that: This injection mold includes: A mold forming unit is arranged on the injection molding box (2) and is used to realize the injection molding of the headlight reflector and the unloading of the molding mold, comprising a molding component and a unloading component, wherein the molding component is used to realize the injection molding of the injection mold of the headlight reflector, and the unloading component is used to realize the automatic unloading of the molding mold after injection molding; The cooling unit is arranged in the module molding unit and is used to achieve rapid cooling and temperature control protection of the molding module during the injection molding process. It includes a liquid guiding component and a heat dissipation component. The liquid guiding component is used to achieve rapid heat dissipation and cooling of the molding module, and the heat dissipation component is used to achieve external heat dissipation of the liquid guiding component to improve the cooling effect of the liquid guiding component.

2. The injection mold for processing automobile headlight reflector according to claim 1, characterized in that: The injection molding box (2) is provided with an injection molding component, and the injection molding component is used to achieve the placement, melting and stable injection of injection molding raw materials; The lower part of the injection molding box (2) is provided with a base (1) for support, and the base (1) is provided with an oblique discharge port (3) for discharging the headlight reflector molding module; A control console (4) is provided on the upper part of the injection molding box (2), and the control console (4) is used to control the opening and closing and operating states of the injection molding components, the module molding unit and the cooling unit, so as to realize automated and efficient injection molding of the vehicle lamp reflector molding module.

3. The injection mold for processing automobile headlight reflector according to claim 2, characterized in that: The injection molding assembly comprises a molten injection device (5) arranged in an injection molding box (2), and a feeding hopper (6) for feeding injection molding raw materials is arranged on the molten injection device (5). The molten injection device (5) is used to heat and melt the injection molding raw materials, and inject the molten injection material into the mold molding unit at a stable pressure and speed, so as to realize automatic injection of the mold molding injection material.

4. The injection mold for processing automobile headlight reflector according to claim 1, characterized in that: The molding assembly comprises a plurality of limit slide bars (9) fixedly mounted on the injection molding box (2), and a movable mold box (7) is slidably mounted on the plurality of limit slide bars (9), and a static mold box (8) is fixedly mounted on the plurality of limit slide bars (9), a molding mold 1 (12) is snap-fittedly mounted in the movable mold box (7), a molding mold 2 (13) matching with the molding mold 1 (12) is snap-fittedly mounted on the static mold box (8), and the molding mold 1 (12) matches with the molten injector (5), and a positioning mechanism is mounted on the movable mold box (7).

5. The injection mold for processing automobile headlight reflector according to claim 4, characterized in that: The positioning mechanism comprises a hydraulic push rod (10) fixedly mounted in the injection molding box (2), a push shaft (11) fixedly mounted on the driving end of the hydraulic push rod (10), and an elastic push rod (18) fixedly mounted between the push shaft (11) and the movable mold box (7), two electromagnetic positioning pins (16) fixedly mounted on the movable mold box (7), and two electromagnetic positioning rings (17) matched with corresponding electromagnetic positioning pins (16) fixedly mounted on the static mold box (8).

6. The injection mold for processing automobile headlight reflector according to claim 5, characterized in that: The unloading assembly comprises a trigger rod (33) fixedly mounted on the pushing shaft (11); a trigger block (34) is slidably mounted on the movable mold box (7); a unloading rack (35) for pushing the molding mold out is slidably mounted on the molding mold one (12), and the upper part of the unloading rack (35) is in contact with the trigger block (34); a return spring (36) is fixedly mounted between the unloading rack (35) and the molding mold one (12); an electric telescopic rod is fixedly mounted on the injection molding box (2), and a positioning rod matched with the movable mold box (7) is fixedly mounted on the electric telescopic rod.

7. The injection mold for processing automobile headlight reflector according to claim 5, characterized in that: The liquid guide assembly comprises a liquid storage box (15) fixedly mounted in the injection molding box (2), wherein the liquid storage box (15) stores cooling liquid, a liquid push plate (25) for squeezing the cooling liquid is slidably mounted in the liquid storage box (15), a reciprocating push rod (24) is slidably mounted on the liquid push plate (25), a linkage plate (23) is fixedly mounted between the reciprocating push rod (24) and the push shaft (11), and a cooling mechanism is mounted on the liquid storage box (15).

8. The injection mold for processing automobile headlight reflector according to claim 7, characterized in that: The cooling mechanism comprises a plurality of condensation ring tubes (20) fixedly mounted in the movable mold box (7), and the plurality of condensation ring tubes (20) are interconnected, an elastic liquid guide tube (19) is fixedly connected between the condensation ring tubes (20) and the liquid storage box (15), and a temperature-sensitive control valve (37) is provided on the elastic liquid guide tube (19), an elastic liquid outlet tube (21) is fixedly connected to the condensation ring tube (20), and the end of the elastic liquid outlet tube (21) is fixedly connected to a liquid storage cylinder (22), and the liquid storage cylinder (22) is fixed in the injection molding box (2) via a support rod.

9. The injection mold for processing automobile headlight reflector according to claim 8, characterized in that: The heat dissipation assembly comprises a support frame (27) fixedly mounted on the outside of the liquid storage tank (15), a driven nut plate (29) being rotatably mounted in the support frame (27), a threaded rod (28) being fixedly mounted on the reciprocating push rod (24), and the threaded rod (28) being matched with the driven nut plate (29); A linkage shaft (26) is rotatably mounted in the injection molding box (2) via a support plate, and a transmission belt (30) is sleeved between the linkage shaft (26) and a driven nut plate (29). A heat dissipation cylinder (14) is fixedly mounted on the outside of the liquid storage cylinder (22), and a plurality of ventilation holes (32) are provided on the heat dissipation cylinder (14). A fan wheel (31) is fixedly mounted on the linkage shaft (26), and the fan wheel (31) is located in the heat dissipation cylinder (14).

10. An injection molding method for processing a reflector for a vehicle headlight, used for the injection molding device for processing a reflector for a vehicle headlight as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing the injection molding raw material into the injection molding component, and after heating and melting, conveying and injecting it into the molding component to complete the injection molding of the automobile headlight reflector injection mold; S2, starting the liquid guide component in the cooling unit to cool the injection mold in the molding component, and automatically adjusting the cooling intensity according to the temperature of the injection mold; S3, starting the heat dissipation component to perform external heat dissipation on the heat conductive component; S4. After the injection mold is cooled and molded, the unloading assembly is started to automatically discharge the injection mold.

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