Car lamp injection molding machine capable of achieving continuous car lamp injection molding and injection molding method

By designing a car light injection molding machine containing multiple injection molding components and injection molding conduits, the problem of continuous production of car lights in the prior art is solved, efficient continuous production is achieved and cost reduction is reduced.

CN119502229APending Publication Date: 2025-02-25TIANJIN DIGUANG LIGHTING TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411635428.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-02-25

AI Technical Summary

Technical Problem

In the prior art, when injection molding cylindrical headlights, it is necessary to wait for the molten plastic to solidify before opening the mold and removing the molded headlights, resulting in the inability to achieve continuous production.

Method used

A car light injection molding machine is designed, including male mold, female mold and hydraulic cylinder. Through the cooperation of multiple injection molding components and injection molding conduits, a continuous circulation injection molding module, cooling module, cutting module and preparation module are formed to achieve uninterrupted continuous production.

Benefits of technology

Continuous production of headlights is achieved, production efficiency is improved, and costs are reduced by reducing dependence on additional sealing components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119502229A_ABST
    Figure CN119502229A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of car lamp injection molding, in particular to a car lamp injection molding machine capable of realizing continuous car lamp injection molding, which comprises a male mold, a female mold, hydraulic cylinders mounted on the male mold and the female mold, and an injection molding machine for injecting hot melt plastic into the male mold and the female mold, one end of the male mold is provided with an injection molding inlet, the other end of the female mold is provided with an injection molding outlet, a communicated molding cavity is formed between the injection molding outlet and the injection molding inlet, transmission parts are fixedly mounted on the hydraulic cylinders, the hydraulic cylinders, the transmission parts and the male mold form a first injection molding part, and the hydraulic cylinders, the transmission parts and the female mold form a second injection molding part. The number of the first injection molding parts and the number of the second injection molding parts are both multiple, the transmission parts in the multiple adjacent first injection molding parts are connected end to end and rotationally connected, and an injection molding guide pipe is installed at a nozzle of the injection molding machine.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of vehicle lamp injection molding, and in particular to a vehicle lamp injection molding machine capable of continuously injection molding vehicle lamps. Background Art

[0002] Bicycle lights are lights installed on bicycles for night riding. Headlights are usually installed at the front of the bicycle. They are cylindrical lights similar to flashlights. Their biggest advantages are that they are economical and portable, have long battery life, are both floodlit and long-range, are waterproof and sweat-proof, and have a high safety index for withstanding bumps.

[0003] In the prior art, when injection molding cylindrical headlights, molten plastic is injected into a molding chamber after the mold is closed through an injection molding machine. After each injection molding is completed, it is necessary to wait for the molten plastic to solidify, then open the mold to remove the molded headlight, and then close the mold to form a cycle. A pause is required in the middle, and cylindrical headlights cannot be produced continuously.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0005] The purpose of the present invention is to design an injection molding machine for continuously producing car lamps in a continuous cycle, without waiting for the molten plastic to solidify before opening the mold, and can continuously produce cylindrical car lamps to solve the above-mentioned shortcomings in the technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a headlight injection molding machine capable of continuous headlight injection molding, comprising a male mold and a female mold, a hydraulic cylinder installed on the male mold and the female mold, and an injection molding machine for injecting hot-melt plastic into the male mold and the female mold, wherein after the male mold and the female mold are closed, an injection molding inlet is formed at one end, and an injection molding outlet is formed at the other end, and a connected molding chamber is formed between the injection molding outlet and the injection molding inlet, a transmission part is fixedly installed on the hydraulic cylinder, the hydraulic cylinder, the transmission part and the male mold constitute a first injection molding part, the hydraulic cylinder, the transmission part and the female mold constitute a second injection molding part, the number of the first injection molding part and the second injection molding part are both set to multiple, the transmission parts in multiple adjacent first injection molding parts are connected end to end and are rotatably connected, and the injection molding part An injection molding conduit is installed at the nozzle of the molding machine, a straight line formed by a plurality of adjacent first injection molding parts and a straight line formed by a plurality of adjacent second injection molding parts are parallel to the injection molding conduit and are respectively located on both sides of the injection molding conduit, an injection molding inlet and an injection molding outlet are both slidably connected to the injection molding conduit, a first injection molding part and a second injection molding part corresponding to the injection molding inlet contacting the end of the injection molding conduit form an injection molding module, the first injection molding part and the second injection molding part into which molten plastic has been injected in the molding chamber form a cooling module, the first injection molding part and the second injection molding part whose molding chamber, injection molding inlet and injection molding outlet are penetrated by the injection molding conduit form a preparation module, and a male mold and a female mold in the first injection molding part and the second injection molding part are opened to form a blanking module;

[0007] The injection outlet of the injection molding module is blocked by the hot-melt plastic in the cooling module, so that the injection molding conduit can inject the molten plastic into the molding chamber through the injection inlet in the injection molding module. The cooling module, injection molding module, preparation module and blanking module move synchronously, so that the injection molding module forms a new cooling module, the preparation module forms a new injection molding module, and the blanking module forms a new preparation module that is slidably connected with the injection molding conduit, so that the cooling module at the end is opened to form a new blanking module.

[0008] Preferably, the male mold is provided with a first semicircular hole, a second semicircular hole and a first cavity, and the female mold is provided with a third semicircular hole, a fourth semicircular hole and a second cavity. When the male mold and the female mold are closed, the first semicircular hole and the third semicircular hole form an injection inlet slidably connected to the injection molding conduit, the second semicircular hole and the fourth semicircular hole form an injection outlet slidably connected to the injection molding conduit, the first cavity and the second cavity form a molding cavity, and the central axis of the injection inlet and the injection outlet coincides with the central axis of the injection molding conduit.

[0009] Preferably, the molding chamber is in the shape of a column with a blind hole at one end, and the diameters of the injection inlet and the injection outlet are smaller than the thickness of the end of the molding chamber.

[0010] Preferably, when the injection molding conduit injects molten plastic into the injection molding module, there are at least two preparation modules on the injection molding conduit.

[0011] Preferably, a plurality of the first injection-molded parts and a plurality of the second injection-molded parts are slidably connected with a guide platform, a mounting platform is fixedly installed at the bottom of the guide platform, the guide platform and the mounting platform are both slidably connected with the transmission member, and the guide platform is configured to be in a straight slot shape.

[0012] Preferably, a rack is fixedly installed on the top of the transmission member, and two transmission shafts are installed on the top of the two guide platforms for common rotation. Two symmetrically distributed double-sided toothed synchronous belts are meshed on the two transmission shafts, and the two double-sided toothed synchronous belts are respectively meshed with the racks on the two mounting platforms. A motor is also fixedly installed on the guide platform, and the motor output shaft is fixedly connected to one of the ends of the transmission shafts.

[0013] In a second aspect, the present invention further provides an injection molding method for operating the vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding to perform injection molding, comprising the following steps:

[0014] S1. The injection molding machine injects the molten plastic into the injection inlet of the injection molding module through the injection molding conduit on the nozzle, filling the injection inlet, injection molding outlet and molding chamber in the injection molding module;

[0015] S2. Start the motor to work for a predetermined time, so that the cooling module, the injection module, the preparation module and the blanking module move synchronously, so that the injection module forms a new cooling module, the preparation module forms a new injection module, and the blanking module forms a new preparation module and is slidably connected with the injection conduit, so that the cooling module at the end is opened to form a new blanking module;

[0016] S3. Take out the cooled and solidified cylindrical headlight from the blanking module.

[0017] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0018] 1. The present invention forms a continuously circulating injection molding module, a cooling module, a material discharge module and a preparation module through the cooperation between a plurality of first injection molding parts, a second injection molding part and an injection molding conduit, so as to continuously produce the columnar headlights without interruption. It is only necessary to remove the cooled and solidified headlights from the material discharge module without affecting the injection molding process of the injection molding module. This solves the problem in the prior art that after each injection molding, it is necessary to wait for the molten plastic to solidify, then open the mold to remove the molded headlight, and then close the mold to form a cycle, which requires a pause in the middle and cannot continuously produce the columnar headlights, thereby improving the production efficiency;

[0019] 2. The present invention blocks the injection molding outlet of the injection molding module by the molten plastic filled in the cooling module, and blocks the injection molding inlet of the injection molding module by cooperating with the injection molding module, so that no additional sealing component is required to perform injection molding sealing on the injection molding inlet and the injection molding outlet of the injection molding module, thereby reducing costs;

[0020] 3. After the cooling module is opened, a blanking module is formed. There is still some time before this blanking module becomes a preparation module, so that the cylindrical headlights in this blanking module can be air-cooled after the mold is opened, further reducing the temperature when it is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection between the rack and the double-sided toothed synchronous belt of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection between the injection molding module and the injection molding conduit of the present invention;

[0025] Figure 4 It is a schematic diagram of the injection molding inlet and injection molding outlet structure of the present invention.

[0026] Description of reference numerals:

[0027] 1. Male mold; 2. Female mold; 3. Hydraulic cylinder; 4. Injection molding machine; 5. Injection molding inlet; 5a. First semicircular hole; 5b. Third semicircular hole shape; 6. Injection molding outlet; 6a. Second semicircular hole; 6b. Fourth semicircular hole shape; 7. Molding chamber; 7a. First chamber; 7b. Second chamber; 8. Transmission member; 9. First injection molding part; 10. Second injection molding part; 11. Injection molding conduit; 12. Injection molding module; 13. Cooling module; 14. Preparation module; 15. Unloading module; 16. Guide table; 17. Mounting table; 18. Rack; 19. Transmission shaft; 20. Double-sided toothed synchronous belt; 21. Motor. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] The present invention provides Figure 1-4 The light injection molding machine shown in the figure is capable of continuous light injection molding, comprising a male mold 1 and a female mold 2, both of which are mounted on the end of the output shaft of a hydraulic cylinder 3, a transmission member 8 is also fixedly mounted on the tail of the hydraulic cylinder 3, the hydraulic cylinder 3, the transmission member 8 and the male mold 1 constitute a first injection molding component 9, the hydraulic cylinder 3, the transmission member 8 and the female mold 2 constitute a second injection molding component 10, the number of the first injection molding component 9 and the second injection molding component 10 is set to be multiple and divided into two sides, one side is entirely the female mold 2 on the first injection molding component 9 and the second injection molding component 10, the male mold 1 and the female mold 2 can be molded and opened, in the mold opening state, the male mold 1 is provided with a first semicircular hole 5a, a second semicircular hole 6a and a first cavity 7a, the female mold 2 is provided with a third semicircular hole 5b, a fourth semicircular hole 6b and a second cavity 7b, the male mold 1 When the film is closed with the female mold 2, the first semicircular hole 5a and the third semicircular hole 5b form an injection molding inlet 5, the second semicircular hole 6a and the fourth semicircular hole 6b form an injection molding outlet 6, the first cavity 7a and the second cavity 7b form a molding cavity 7, the molding cavity 7 is in the shape of a column with a blind hole at one end, and the other side is all second injection molding parts 10, one male mold 1 on each first injection molding part 9 corresponds to one, an injection molding machine 4 is installed between the first injection molding part 9 and the second injection molding part 10, and an injection molding conduit 11 is installed at the nozzle of the injection molding machine 4, the central axis of the injection molding inlet 5 and the injection molding outlet 6 coincides with the central axis of the injection molding conduit 11, the injection molding inlet 5 and the injection molding outlet 6 are both slidably connected to the injection molding conduit 11, and the diameters of the injection molding inlet 5, the injection molding outlet 6 and the injection molding conduit 11 are smaller than the thickness of the end of the molding cavity 7;

[0031] A guide platform 16 is slidably connected to the plurality of first injection molding parts 9 and the second injection molding parts 10, so that the first injection molding parts 9 and the second injection molding parts 10 form a straight slot shape, so that the first injection molding parts 9 and the second injection molding parts 10 will be parallel for a section, and the injection molding conduit 11 will be clamped. A mounting platform 17 is fixedly installed at the bottom of the guide platform 16, and the first injection molding parts 9 and the second injection molding parts 10 are both slidably connected to the mounting platform 17. A rack 18 is fixedly installed on the top of the transmission member 8. Two transmission shafts 19 are installed on the top of the two guide platforms 16 for common rotation. Two symmetrically distributed double-sided toothed synchronous belts 20 are meshed on the two transmission shafts 19. The two double-sided toothed synchronous belts 20 are respectively meshed with the racks 18 on the two mounting platforms 17. The guide platform 16 is also fixedly installed with a The motor 21, the output shaft of the motor 21 is fixedly connected to one end of the transmission shaft 19, the first injection molding part 9 and the second injection molding part 10 corresponding to the injection molding inlet 5 contacting the end of the injection molding conduit 11 form an injection molding module 12, the first injection molding part 9 and the second injection molding part 10 which have been injected with molten plastic in the molding chamber 7 form a cooling module 13, the first injection molding part 9 and the second injection molding part 10 whose molding chamber 7, injection molding inlet 5 and injection molding outlet 6 are penetrated by the injection molding conduit 11 form a preparation module 14, the male mold 1 and the female mold 2 in the first injection molding part 9 and the second injection molding part 10 are opened to form a blanking module 15, and when the injection molding conduit 11 injects molten plastic into the injection molding module 12, the injection molding conduit 11 has at least two preparation modules 14;

[0032] The present invention also provides an injection molding method for operating the above-mentioned vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding to perform injection molding, comprising the following steps:

[0033] S1. During operation, the injection molding machine 4 injects the molten plastic into the injection inlet 5 of the injection molding module 12 through the injection molding conduit 11 on the nozzle. Since the injection inlet 5 in the cooling module 13 fits with the injection molding outlet 6 in the injection molding module 12 to form a connected pipeline, and the injection inlet 5 in the cooling module 13 has been filled with molten plastic, the injection molding outlet 6 in the injection molding module 12 is sealed. At this time, the molten plastic will fill the injection inlet 5, the injection molding outlet 6 and the molding chamber 7 from the injection inlet 5 of the injection molding module 12;

[0034] S2. Start the motor 21 to work for a predetermined time, the motor 21 will drive the transmission shaft 19 to rotate, the transmission shaft 19 will drive the double-sided toothed synchronous belt 20 to move, the double-sided toothed synchronous belt 20 will drive the first injection molding part 9 and the first injection molding part 9 to move synchronously by meshing with the rack 18, so that the injection molding module 12 whose original injection molding inlet 5 is in contact with the end of the injection molding conduit 11 becomes the new cooling module 13, and the original preparation module 14 will slide on the injection molding conduit 11 until the injection molding inlet 5 on the preparation module 14 is in contact with the end of the injection molding conduit 11 to form a new injection molding module 12. When the injection molding conduit 11 injects molten plastic into the injection molding module 12, the injection molding conduit 11 has at least two preparation modules 14, so that when the preparation module 14 becomes a new injection molding module 12, it can be guaranteed There is always a preparation module 14 slidably connected to the injection duct 11, because the number of cooling modules 13 is set to be multiple, the degree of cooling and solidification of the molten plastic in the cooling module 13 that is farther away from the injection duct 11 is at the required hardness. We only need to ensure the length of the cooling module 13, so that the output shafts of the two hydraulic cylinders 3 in the cooling module 13 at the end can be shortened, so that the male mold 1 and the female mold 2 can be opened, and then this cooling module 13 forms a new unloading module 15, and the unloading module 15 adjacent to the preparation module 14 will move parallel to the preparation module 14, and the output shaft of the hydraulic cylinder 3 on this unloading module 15 will be extended to drive the male mold 1 and the female mold 2 to close the mold, and the injection outlet 6, the injection inlet 5 and the injection chamber will clamp the injection duct 11 and slide in connection with it to form a new preparation module 14;

[0035] S3. Finally, the staff takes out the cooled and solidified cylindrical lamp from the blanking module 15, or the cylindrical lamp can be ejected using the ejector technology in the prior art.

[0036] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are exemplary only. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. An automotive lamp injection molding machine capable of continuously injection molding automotive lamps, comprising a male mold (1) and a female mold (2), a hydraulic cylinder (3) mounted on the male mold (1) and the female mold (2), and an injection molding machine (4) for injecting hot melt plastic into the male mold (1) and the female mold (2), characterized in that: After the male mold (1) and the female mold (2) are molded together, an injection inlet (5) is formed at one end and an injection outlet (6) is formed at the other end; a molding chamber (7) is formed between the injection outlet (6) and the injection inlet (5); a transmission component (8) is fixedly mounted on the hydraulic cylinder (3); the hydraulic cylinder (3), the transmission component (8) and the male mold (1) form a first injection component (9); the hydraulic cylinder (3), the transmission component (8) and the female mold (2) form a second injection component (10); the number of the first injection component (9) and the number of the second injection component (10) are both set to be multiple; the transmission components (8) in the multiple adjacent first injection components (9) are connected end to end and are rotatably connected; an injection conduit (11) is installed at the nozzle of the injection molding machine (4); a straight line formed by the multiple adjacent first injection components (9) and a straight line formed by the multiple adjacent second injection components (10) are connected to each other; The straight lines are parallel to the injection molding conduit (11) and are respectively located on both sides of the injection molding conduit (11); the injection molding inlet (5) and the injection molding outlet (6) are both slidably connected to the injection molding conduit (11); the first injection molding component (9) and the second injection molding component (10) corresponding to the injection molding inlet (5) contacting the end of the injection molding conduit (11) form an injection molding module (12); the first injection molding component (9) and the second injection molding component (10) injected with molten plastic in the molding chamber (7) form a cooling module (13); the first injection molding component (9) and the second injection molding component (10) whose molding chamber (7), the injection molding inlet (5) and the injection molding outlet (6) are penetrated by the injection molding conduit (11) form a preparation module (14); and the male mold (1) and the female mold (2) in the first injection molding component (9) and the second injection molding component (10) are opened to form a blanking module (15); The hot melt plastic in the cooling module (13) blocks the injection outlet (6) of the injection molding module (12), so that the injection molding conduit (11) can inject the molten plastic into the molding chamber (7) through the injection molding inlet (5) in the injection molding module (12). The cooling module (13), the injection molding module (12), the preparation module (14) and the unloading module (15) move synchronously, so that the injection molding module (12) forms a new cooling module (13), the preparation module (14) forms a new injection molding module (12), and the unloading module (15) forms a new preparation module (14) and is slidably connected with the injection molding conduit (11), so that the cooling module (13) at the end is opened to form a new unloading module (15).

2. The vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding according to claim 1, characterized in that: The male mold (1) is provided with a first semicircular hole (5a), a second semicircular hole (6a) and a first cavity (7a); the female mold (2) is provided with a third semicircular hole (5b), a fourth semicircular hole (6b) and a second cavity (7b); when the male mold (1) and the female mold (2) are combined, the first semicircular hole (5a) and the third semicircular hole (5b) form an injection molding inlet (5) slidably connected to the injection molding conduit (11); the second semicircular hole (6a) and the fourth semicircular hole (6b) form an injection molding outlet (6) slidably connected to the injection molding conduit (11); the first cavity (7a) and the second cavity (7b) form a molding cavity (7); and the central axis of the injection molding inlet (5) and the injection molding outlet (6) coincides with the central axis of the injection molding conduit (11).

3. The vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding according to claim 2, characterized in that: The shape of the molding chamber (7) is a column with a blind hole at one end, and the diameters of the injection inlet (5) and the injection outlet (6) are smaller than the thickness of the end of the molding chamber (7).

4. The vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding according to claim 1, characterized in that: When the injection molding conduit (11) injects molten plastic into the injection molding module (12), at least two preparation modules (14) are provided on the injection molding conduit (11).

5. The vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding according to claim 1, characterized in that: A plurality of the first injection-molded parts (9) and a plurality of the second injection-molded parts (10) are slidably connected to a guide platform (16), a mounting platform (17) is fixedly mounted on the bottom of the guide platform (16), the guide platform (16) and the mounting platform (17) are both slidably connected to the transmission member (8), and the guide platform (16) is configured to be in a straight slot shape.

6. The vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding according to claim 5, characterized in that: A rack (18) is fixedly mounted on the top of each transmission member (8); two transmission shafts (19) are mounted on the top of the two guide platforms (16) for co-rotation; two symmetrically distributed double-sided toothed synchronous belts (20) are meshed on the two transmission shafts (19); the two double-sided toothed synchronous belts (20) are respectively meshed with the racks (18) on the two mounting platforms (17); a motor (21) is also fixedly mounted on the guide platform (16); an output shaft of the motor (21) is fixedly connected to an end of one of the transmission shafts (19).

7. An injection molding method, used for operating a vehicle lamp injection molding machine capable of continuous vehicle lamp injection molding as claimed in any one of claims 1 to 6 for injection molding, characterized in that: The following steps are involved: S1. The injection molding machine (4) injects molten plastic into the injection inlet (5) of the injection molding module (12) through the injection molding conduit (11) on the nozzle, and fills the injection inlet (5), the injection molding outlet (6) and the molding chamber (7) in the injection molding module (12); S2. Start the motor (21) to work for a predetermined time, so that the cooling module (13), the injection molding module (12), the preparation module (14) and the blanking module (15) move synchronously, so that the injection molding module (12) forms a new cooling module (13), the preparation module (14) forms a new injection molding module (12), and the blanking module (15) forms a new preparation module (14) and is slidably connected to the injection molding conduit (11), so that the cooling module (13) at the end is opened to form a new blanking module (15); S3. Take out the cooled and solidified cylindrical lamp from the unloading module (15).