Bulb injection molding device

Abstract

The utility model discloses a bulb injection molding device, which realizes two steps of blank forming and product forming through the arrangement of a first mold assembly, a second mold assembly and a rotating mold assembly, so that the material of a mold is saved, the acquisition cost of the mold is saved, the forming of a new round of blank and the forming of a previous round of product are synchronously carried out, and the production efficiency is improved. The process time is rationalized, the production efficiency is improved, in addition, the blank is transferred into the second die cavity from the first die cavity through the rotating die assembly, the two steps are connected with each other, and the manual transfer time is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding devices, and in particular relates to a light bulb injection molding device. Background Art

[0002] The production process for LED bulbs involves heating the raw materials to a molten state and then injecting them into the mold cavity under high pressure. After the molten material is maintained under pressure, cooled, and solidified in the mold, the mold is opened and the finished bulb is ejected by an ejector.

[0003] The injection molding of light bulbs requires the formation of blanks first. As the initial stage of injection molding, the blanks can preliminarily shape the appearance of the light bulb, lay the foundation for subsequent molding steps, and reduce the risk of waste in the subsequent molding process.

[0004] In the prior art, the steps of forming the blank and molding have something in common, that is, both steps require the use of molds. In the prior art, these two steps are usually performed separately in different sites, and the molds also need to be purchased independently. The process time of the two steps is long, and the purchase cost of the molds of the two steps is high. Therefore, the present invention proposes a light bulb injection molding device. Utility Model Content

[0005] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art and to provide a light bulb injection molding device. By improving the structure of the mold, it not only saves mold materials compared to the original, but also enables the two steps to be carried out simultaneously, saving process time.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A light bulb injection molding device includes a first mold assembly and a second mold assembly, and also includes a rotary mold assembly. The rotary mold assembly is arranged between the first mold assembly and the second mold assembly. The rotary mold assembly forms a first mold cavity by combining with the first mold assembly. The first mold cavity is used to form a blank. The rotary mold assembly forms a second mold cavity by combining with the second mold assembly. The second mold cavity is used to shape the blank. The rotary mold assembly moves the blank from the first mold cavity to the second mold cavity by rotating. When the blank is being shaped in the second mold cavity, raw materials are injected into the first mold cavity to form a new round of blanks.

[0008] Furthermore, it also includes a first auxiliary part and a second auxiliary part. The first auxiliary part is used to close or separate the rotary mold assembly and the first mold assembly, and the second auxiliary part is used to close or separate the rotary mold assembly and the second mold assembly. The first auxiliary part and the second auxiliary part act simultaneously, so that the first mold assembly and the second mold assembly are closed or separated with the rotary mold assembly at the same time.

[0009] Furthermore, it also includes a linear slide rail. The rotary mold assembly is provided with a linear slider. The linear slider is limited on the linear slide rail and performs linear reciprocating motion.

[0010] Furthermore, the first auxiliary component is an oil cylinder, which includes a cylinder body and a connecting shaft. The connecting shaft is telescopically arranged in the cylinder body, the connecting shaft is fixed to the rotating mold assembly, and the cylinder body is fixed to the first mold assembly.

[0011] Furthermore, the rotary mold assembly includes a rotary mold, a turntable and a driving assembly. The rotary mold and the gear driving assembly are respectively arranged on the turntable. When the driving assembly drives the turntable to rotate, the turntable drives the rotary mold to rotate.

[0012] Furthermore, the drive assembly includes a first gear, a second gear, a reducer and a motor, the first gear is arranged on the turntable, the second gear is engaged with the first gear, the reducer has an output end and an input end, the output end is connected to the second gear, and the input end is connected to the motor.

[0013] Furthermore, it includes a support member, a rotating shaft is rotatably set on one side of the support member, and a turntable is rotatably set on the other side. The rotating shaft and the turntable are respectively fixed on both sides of the rotating mold, so that the rotating mold rotates.

[0014] Furthermore, the first mold assembly is fixed with a pull rod, and the support member and the second mold assembly are provided with movable holes, and the pull rod is inserted into the movable holes, so that the support member and the second mold assembly move along the pull rod.

[0015] Furthermore, the support member includes a top plate, a bottom plate and side plates. The side plates are provided with interlocking blocks. The top plate and the bottom plate are respectively provided with interlocking grooves. The interlocking blocks and the interlocking grooves match each other. When the interlocking blocks are embedded in the interlocking grooves, a frame-shaped support member is formed.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] The utility model realizes the two steps of blank forming and product forming by setting up the first mold assembly, the second mold assembly and the rotary mold assembly, which not only saves the material of the mold and the purchase cost of the mold, but also enables the formation of a new round of blanks and the forming of the previous round of products to be carried out simultaneously, rationalizes the process time, and improves production efficiency. In addition, the blank is transferred from the first mold cavity to the second mold cavity through the rotary mold assembly, so that the two steps are interconnected, saving the time of manual transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is a cross-sectional view of the utility model at CC;

[0022] Figure 4 This is a schematic structural diagram of the bottom plate, turntable and drive assembly of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the rotating part in the utility model.

[0024] In the figure, 1-first mold assembly; 2-second mold assembly; 3-rotating mold assembly; 4-rotating mold; 5-cylinder body; 6-connecting shaft; 7-pull rod; 8-head plate; 9-first template; 10-second plate; 11-second template; 12-rotating shaft; 13-linear slide rail; 14-first gear; 15-second gear 15; 16-reducer; 17-rotating motor; 18-turntable; 19-linear slider; 20-bottom plate; 21-mating groove; 22-mating block; 23-top plate; 24-side plate; 25-movable hole; 26-oil cylinder. DETAILED DESCRIPTION

[0025] like Figures 1 to 5 As shown, a light bulb injection molding device of the present invention includes a first mold assembly 1, a second mold assembly 2 and a rotary mold assembly 3. The rotary mold assembly 3 is arranged between the first mold assembly 1 and the second mold assembly 2. The rotary mold assembly 3 includes an A surface and a B surface. The A surface or the B surface is molded together with the first mold assembly 1 to form a first mold cavity. The first mold cavity is used to form a blank. The A surface or the B surface is molded together with the second mold assembly 2 to form a second mold cavity. The second mold cavity is used to shape the blank. The rotary mold assembly 3 brings the blank from the first mold cavity to the second mold cavity by rotation. When the blank is shaped in the second mold cavity, raw materials are injected into the first mold cavity to form a new round of blanks.

[0026] The present invention includes a first auxiliary part and a second auxiliary part. The first auxiliary part adopts an oil cylinder 26. The oil cylinder 26 includes a cylinder body 5 and a connecting shaft 6. The connecting shaft 6 is telescopically arranged in the cylinder body 5. The connecting shaft 6 is fixed on the rotary mold assembly 3. The cylinder body 5 is fixed on the first mold assembly 1. The connecting shaft 6 enables the rotary mold assembly 3 and the first mold assembly 1 to be closed or separated by telescoping. The second auxiliary part also adopts a push cylinder (not shown in the figure). The output shaft of the push cylinder is fixed on the second mold assembly 2, so that the rotary mold assembly 3 and the second mold assembly 2 are closed or separated. In order to ensure that the two steps of forming the blank and molding are carried out simultaneously, the first auxiliary part and the second auxiliary part act simultaneously, so that the first mold assembly 1 and the second mold assembly 2 are closed or separated with the rotary mold assembly 3 at the same time.

[0027] The rotary mold assembly 3 includes a support and a rotary mold 4. A rotary shaft 12 is rotatably provided on one side of the support, and a turntable 18 is rotatably provided on the other side. The rotary shaft 12 and the turntable 18 are respectively fixed on both sides of the rotary mold 4. The turntable 18 is provided with a drive assembly, which includes a first gear 14, a second gear 15, a reducer 16 and a rotary motor 17. The first gear 14 is provided on the turntable 18, and the second gear 15 is engaged with the first gear 14. The reducer 16 has an output end and an input end. The output end is connected to the second gear 15, and the input end is connected to the rotary motor 17. When the rotary motor 17 is started, the second gear 15 drives the first gear 14 to rotate, and then the turntable 18 drives the rotary mold 4 to rotate around the rotary shaft 12.

[0028] The support member includes a top plate 23, a bottom plate 20 and a side plate 24. The side plate 24 is provided with an interlocking block 22. The top plate 23 and the bottom plate 20 are respectively provided with an interlocking groove 21. The interlocking block 22 and the interlocking groove 21 match each other. When the interlocking block 22 is embedded in the interlocking groove 21, a frame-shaped support member is formed. The frame shape of the support member can protect the rotation of the rotating mold 4.

[0029] The first mold assembly 1 includes a first template 9 and a head plate 8, and the second mold assembly 2 includes a second template 11 and a second plate 10. The first template 9 is detachably mounted on the head plate 8, and the second template 11 is detachably mounted on the second plate 10 to facilitate the replacement of different templates. A pull rod 7 is fixedly mounted on the head plate 8, and movable holes 25 are provided on the support member and the second plate 10. The pull rod 7 is inserted into the movable hole 25, allowing the support member and the second plate 10 to move along the pull rod 7. A linear slide rail 13 is also provided below the rotary mold assembly 3. The rotary mold assembly 3 is provided with a linear slider 19. The linear slider 19 is limited on the linear slide rail 13 and performs linear reciprocating motion.

[0030] During use, side A (or B) of the rotary mold 4 is joined to the first mold assembly 1. Material is injected through the injection port of the first mold assembly 1 into the first cavity between side A and the first mold assembly 1, forming a blank. Simultaneously, the second mold assembly 2 is joined to side B (or side A), forming the product in the second cavity between side B and the second mold assembly 2. Then, the first and second auxiliary components operate simultaneously, opening the molds between the first mold assembly 1 and side A, and the second mold assembly 2 and side B, pushing and ejecting the finished product on side B. Next, the rotary mold 4 rotates 180 degrees, bringing the blank on side A to the second mold assembly 2, ready for further closing and molding. Side B faces the first mold assembly 1 (the product on side B has already been ejected and is empty). The molds are then closed simultaneously, with side A and the second mold assembly 2 forming the second cavity, and side B and the first mold assembly 1 forming the first cavity. The blank previously formed on side A forms the finished product in the second cavity. Injection is then repeated in the first cavity, producing a blank. The manufacturing process repeats itself.

[0031] It should also be noted that the first template 9, the second template 11 and the rotary mold 4 in the accompanying drawings are simple schematic diagrams and are not drawn in detail in the present utility model.

[0032] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention that solve essentially the same technical problems and achieve essentially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A light bulb injection molding device, comprising a first mold assembly and a second mold assembly, characterized in that: It also includes a rotary mold assembly, which is arranged between the first mold assembly and the second mold assembly. The rotary mold assembly forms a first mold cavity by combining with the first mold assembly, and the first mold cavity is used to form a blank. The rotary mold assembly forms a second mold cavity by combining with the second mold assembly, and the second mold cavity is used to shape the blank. The rotary mold assembly brings the blank from the first mold cavity to the second mold cavity by rotation. When the blank is being shaped in the second mold cavity, raw material is injected into the first mold cavity to form a new round of blanks.

2. A light bulb injection molding device according to claim 1, characterized in that: It also includes a first auxiliary part and a second auxiliary part, the first auxiliary part is used to make the rotary mold assembly and the first mold assembly close or separate, the second auxiliary part is used to make the rotary mold assembly and the second mold assembly close or separate, the first auxiliary part and the second auxiliary part act simultaneously, so that the first mold assembly and the second mold assembly are closed or separated with the rotary mold assembly at the same time.

3. The light bulb injection molding device according to claim 2, characterized in that: The first auxiliary component is an oil cylinder, which includes a cylinder body and a connecting shaft. The connecting shaft is telescopically arranged in the cylinder body, the connecting shaft is fixed to the rotating mold assembly, and the cylinder body is fixed to the first mold assembly.

4. The light bulb injection molding device according to claim 1, characterized in that: It also includes a linear slide rail. The rotary mold assembly is provided with a linear slider. The linear slider is limited on the linear slide rail and performs linear reciprocating motion.

5. The light bulb injection molding device according to claim 1, characterized in that: The rotary mold assembly includes a support and a rotary mold. A rotary shaft is rotatably arranged on one side of the support, and a rotary disk is rotatably arranged on the other side. The rotary shaft and the rotary disk are respectively fixed on both sides of the rotary mold, so that the rotary mold rotates.

6. The light bulb injection molding device according to claim 5, characterized in that: The first mold assembly is fixed with a pull rod, and the support member and the second mold assembly are provided with movable holes, and the pull rod is inserted into the movable holes, so that the support member and the second mold assembly move along the pull rod.

7. The light bulb injection molding device according to claim 5, characterized in that: The support member includes a top plate, a bottom plate and a side plate. The side plate is provided with a mosaic block. The top plate and the bottom plate are respectively provided with a mosaic groove. The mosaic block and the mosaic groove match each other. When the mosaic block is embedded in the mosaic groove, a frame shape is formed.

8. The light bulb injection molding device according to claim 5, characterized in that: The turntable is provided with a driving assembly, and the driving assembly is used to drive the turntable to rotate. When the turntable rotates, the rotating mold is also driven to rotate.

9. The light bulb injection molding device according to claim 8, characterized in that: The driving assembly includes a first gear, a second gear, a reducer and a rotating motor, the first gear is arranged on the turntable, the second gear is engaged with the first gear, the reducer is provided with an output end and an input end, the output end is connected to the second gear, and the input end is connected to the rotating motor.

10. The light bulb injection molding device according to claim 1, characterized in that: The first mold assembly includes a head plate and a first template, and the first template is arranged on the head plate; the second mold assembly includes a second plate and a second template, and the second template is arranged on the second plate.

Images