Die-casting device for lamp housings

Abstract

The application relates to the technical field of lamp shell production equipment, in particular to a die casting device for lamp shells, which comprises a base, a side support, a lifting driving part and a group of upper molds, the side support is installed on one side of the base, the lifting driving part is vertically installed on the top of the side support, the upper molds are horizontally arranged and fixedly assembled at the bottom of the lifting driving part, the lifting driving part is used for driving the upper molds to ascend or descend, the base is further provided with an annular support frame, a rotating shaft and a rotating disc, the rotating shaft is rotatably assembled at the bottom of the base, the rotating disc is fixedly assembled at the top of the rotating shaft, at least four groups of lower molds are assembled on the rotating disc and are respectively provided with a die casting station, a blanking station, a cleaning station and a coating station for demolding liquid, the top of the annular support frame is supported on the bottom periphery of the rotating disc, and a rotating driving part is further arranged between the base and the rotating shaft. The die casting device for lamp shells can simultaneously perform the operations of taking out lamp shell die castings, cleaning lower mold cavities and coating demolding liquid on the lower molds, and the production efficiency is higher.

Description

Technical Field

[0001] This application relates to the field of lamp housing production equipment technology, and in particular to a lamp housing die-casting apparatus. Background Technology

[0002] With the maturity of LED lighting technology, various LED lighting products are developing rapidly. Die casting machines are generally used in the LED lighting manufacturing process. These machines inject molten metal or semi-metal into a mold under pressure and allow it to cool and solidify. After the die-cast part has cooled and solidified, it is usually removed from the lower mold; this is one of the basic principles of die casting mold design.

[0003] For example, Chinese patent application number CN202323217116.4 discloses an LED lamp housing die-casting device, which includes a frame, a conveyor belt, a top frame, mold a, mold b, a demolding component, a hydraulic cylinder b, a push plate, a control valve b, a feed pipe, a spraying component for cleaning the surfaces of mold a and mold b, and a driving component for driving mold a and mold b to engage; the top frame is mounted on the frame, the driving component is mounted on the frame, mold a is mounted on the driving component, and a spring is provided at each of the four connecting blocks, with the two ends of the spring connected to the connecting block and mold b respectively.

[0004] After the lamp housing die casting is removed from the lower mold, the workers need to remove the lamp housing die casting in time, then quickly clean the mold cavity of the lower mold, and then apply release agent to the mold cavity of the lower mold before the next die casting operation can be carried out.

[0005] Regarding the aforementioned related technologies, the inventors believe that the following defects exist: In common lamp housing die-casting equipment, only one set of lower molds is configured for one set of upper molds. After the machine is stopped, the staff can carry out operations such as taking out the lamp housing die-casting parts, cleaning the lower mold cavity, and applying release agent to the lower mold. The above processing work cannot be carried out at the same time as the die-casting work, which greatly reduces production efficiency and is not conducive to controlling production costs. Utility Model Content

[0006] This application provides a die-casting apparatus for lamp housings to improve the following technical problems: In common lamp housing die-casting equipment, only one set of lower molds is configured for one set of upper molds. After the machine is stopped, the staff can carry out operations such as taking out the lamp housing die-casting parts, cleaning the lower mold cavity, and applying release agent to the lower mold. The above processing work cannot be carried out at the same time as the die-casting work, which greatly reduces production efficiency and is not conducive to controlling production costs.

[0007] This application provides a die-casting device for lamp housings, which adopts the following technical solution: A die-casting device for lamp housings includes a base, a side bracket, a lifting drive unit, and a set of upper molds. The side bracket is installed on one side of the base, and the lifting drive unit is vertically installed on the top of the side bracket. The upper molds are horizontally arranged and fixedly assembled to the bottom of the lifting drive unit. The lifting drive unit is used to drive the upper molds to rise or fall. The base is also provided with an annular support frame, a rotating shaft, and a turntable. The rotating shaft is vertically arranged and rotatably assembled to the base at its bottom. The turntable is horizontally arranged and fixedly assembled to the top of the rotating shaft at its center. At least four sets of lower molds are assembled on the turntable, forming a die-casting station, a material unloading station, a cleaning station, and a stripping liquid coating station, respectively. The top of the annular support frame is supported by the bottom periphery of the turntable. A rotary drive unit located inside the annular support frame is provided between the base and the rotating shaft. The rotary drive unit is used to intermittently drive the turntable to rotate, thereby gradually switching the lower molds to different stations.

[0008] In one feasible technical solution of this application, the annular support frame includes an annular steel cylinder and multiple sets of bullseye balls. The annular steel cylinder is vertically fixed on the base, and the multiple sets of bullseye balls are evenly spaced and fixed on the top surface of the annular steel cylinder. The bullseye balls are in contact with the lower surface of the turntable.

[0009] In one feasible technical solution of this application, the rotary drive unit includes a servo drive motor, a reduction gearbox, and a gear transmission assembly. The servo drive motor and the reduction gearbox are both fixed on the base. The output end of the servo drive motor is connected to the input shaft of the reduction gearbox, and the gear transmission assembly is connected between the rotating shaft and the output shaft of the reduction gearbox.

[0010] In one feasible technical solution of this application, the gear transmission group includes a large gear disk and a small gear disk that mesh and transmit power. The large gear disk is fixed on the rotating shaft, and the small gear disk is fixed on the output shaft of the reduction gearbox.

[0011] In one feasible technical solution of this application, the base is further provided with a die-casting support part, which is located inside the annular support frame, and the die-casting support part is activated to support the upper lower mold when the lower mold rotates to the position directly below the upper mold.

[0012] In one feasible technical solution of this application, the die-casting support includes a support platform and multiple sets of synchronously operating support cylinders. The cylinder body of the support cylinder is arranged vertically and its bottom is fixed to the base. The support platform is arranged horizontally and fixed to the top of the telescopic rod of the multiple sets of support cylinders. The support platform is located directly below the upper mold.

[0013] In one feasible technical solution of this application, the lower surface of the turntable is provided with a plurality of vertically arranged positioning holes, the positioning holes and the lower mold are arranged in a one-to-one correspondence, and the support platform is provided with positioning posts, the positioning posts being inserted into the positioning holes when the support platform is raised to a high position and contacts the turntable.

[0014] In one feasible technical solution of this application, the lifting drive unit includes a lifting plate and multiple sets of lifting cylinders that work synchronously. The cylinder body of the lifting cylinder is arranged vertically and its top is fixed to the side bracket. The lifting plate is arranged horizontally and fixed to the bottom of the telescopic rods of the multiple sets of lifting cylinders. The upper mold is fixed to the lower surface of the lifting plate.

[0015] In summary, this application includes at least one of the following beneficial technical effects: A set of upper molds is equipped with at least four sets of lower molds with the same structure. While the raw materials are being die-cast and waiting for cooling and solidification at the die-casting station, the workers around the unloading station can simultaneously remove the lamp housing die-casting parts. The workers around the cleaning station can simultaneously clean the mold cavity of the lower mold. The workers around the release agent application station can simultaneously apply release agent to the lower mold. Moreover, by starting the rotary drive unit, the turntable is driven to rotate intermittently, thereby gradually switching the lower mold to different stations, realizing efficient assembly line operation, higher production efficiency, and helping to save production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the die-casting device for the lamp housing according to an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the arrangement structure of multiple lower molds in the embodiments of this application.

[0019] Explanation of reference numerals in the attached figures: 1. Base; 2. Side support; 3. Lifting drive unit; 31. Lifting plate; 32. Lifting cylinder; 4. Upper mold; 5. Circular support frame; 51. Circular steel cylinder; 52. Bullseye ball bearing; 6. Shaft; 7. Turntable; 71. Positioning hole; 8. Rotary drive unit; 81. Servo drive motor; 82. Gearbox; 83. Large gear disk; 84. Small gear disk; 9. Die-casting support section; 91. Support platform; 92. Support cylinder; 93. Positioning column; 10. Lower mold. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0025] This application discloses a die-casting apparatus for lamp housings. (Refer to...) Figure 1-2The die-casting device for the lamp housing includes a base 1, a side bracket 2, a lifting drive unit 3, and a set of upper molds 4. The side bracket 2 is installed on one side of the base 1, the lifting drive unit 3 is vertically installed on the top of the side bracket 2, and the upper mold 4 is horizontally arranged and fixedly assembled at the bottom of the lifting drive unit 3. The lifting drive unit 3 is used to drive the upper mold 4 to rise or fall. The base 1 is also provided with an annular support frame 5, a rotating shaft 6, and a turntable 7. The rotating shaft 6 is vertically arranged and rotatably assembled at the bottom of the base 1. The turntable 7 is horizontally arranged and fixedly assembled at the top of the rotating shaft 6. At least four sets of lower molds 10 are assembled on the turntable 7, forming a die-casting station, a material unloading station, a cleaning station, and a stripping liquid coating station, respectively. The top of the annular support frame 5 is supported on the bottom periphery of the turntable 7. A rotary drive unit 8 is also provided between the base 1 and the rotating shaft 6, located inside the annular support frame 5. The rotary drive unit 8 is used to intermittently drive the turntable 7 to rotate so as to gradually switch the lower molds 10 to different stations.

[0026] In this embodiment, in order to improve the support effect of the annular support frame 5 and reduce the frictional resistance when the turntable 7 rotates, the annular support frame 5 includes an annular steel cylinder 51 and multiple sets of bullseye balls 52. The annular steel cylinder 51 is vertically fixed on the base 1, and the multiple sets of bullseye balls 52 are evenly spaced and fixed on the top surface of the annular steel cylinder 51. The bullseye balls 52 are in contact with the lower surface of the turntable 7.

[0027] In this embodiment, in order to achieve stable driving of the turntable 7 to rotate to the required angle as needed, the rotary drive unit 8 includes a servo drive motor 81, a reduction gearbox 82, and a gear transmission assembly. The servo drive motor 81 and the reduction gearbox 82 are both fixed on the base 1. The output end of the servo drive motor 81 is connected to the input shaft of the reduction gearbox 82. The gear transmission assembly is connected between the rotating shaft 6 and the output shaft of the reduction gearbox 82. The gear transmission assembly includes a large gear disk 83 and a small gear disk 84 that mesh and transmit power. The large gear disk 83 is fixed on the rotating shaft 6, and the small gear disk 84 is fixed on the output shaft of the reduction gearbox 82.

[0028] To further enhance the support effect on the turntable 7, the base 1 is also equipped with a die-casting support part 9. The die-casting support part 9 is located inside the annular support frame 5. When the lower mold 10 rotates to the position directly below the upper mold 4, the die-casting support part 9 is activated to support the upper lower mold 10. The die-casting support part 9 includes a support platform 91 and multiple sets of synchronously working support cylinders 92. The cylinder body of the support cylinder 92 is arranged vertically and its bottom is fixed to the base 1. The support platform 91 is arranged horizontally and fixed to the top of the telescopic rod of the multiple sets of support cylinders 92. The support platform 91 is located directly below the upper mold 4, thereby effectively preventing the turntable 7 from deforming under the huge downward pressure generated during the die-casting process, resulting in better structural stability.

[0029] During the switching of the lower mold 10, in order to facilitate the positioning of the lower mold 10, the lower surface of the turntable 7 is provided with multiple vertically arranged positioning holes 71. The positioning holes 71 and the lower mold 10 are arranged one-to-one. The support platform 91 is provided with positioning pins 93. When the support platform 91 is raised to the high position and contacts the support turntable 7, the positioning pins 93 are inserted into the positioning holes 71.

[0030] The lifting drive unit 3 includes a lifting plate 31 and multiple sets of synchronously operating lifting cylinders 32. The cylinder bodies of the lifting cylinders 32 are arranged vertically and their tops are fixed to the side brackets 2. The lifting plate 31 is arranged horizontally and fixed to the bottom of the telescopic rods of the multiple sets of lifting cylinders 32. The upper mold 4 is fixed to the lower surface of the lifting plate 31. The lifting drive unit 3 designed above has a simple structure, stable operation and control, and is conducive to quickly and stably driving the upper mold 4 to rise and fall.

[0031] The beneficial technical effects of the die-casting apparatus for lamp housings in this application embodiment are roughly as follows: A set of upper molds 4 is equipped with at least four sets of lower molds 10 with the same structure. When the raw materials are being die-cast and waiting for cooling and solidification at the die-casting station, the workers around the unloading station can simultaneously remove the lamp housing die-casting parts. The workers around the cleaning station can simultaneously clean the mold cavity of the lower mold 10. The workers around the release agent application station can simultaneously apply release agent to the lower mold 10. Moreover, by starting the rotary drive unit 8, the turntable 7 is driven to rotate intermittently, thereby gradually switching the lower mold 10 to different stations, realizing efficient assembly line operation, higher production efficiency, and helping to save production costs.

[0032] Moreover, the annular support frame 5 provides good support for the turntable 7, resulting in stronger structural stability, which is sufficient to withstand the enormous downward pressure generated during the die-casting process, making the operation smoother and safer.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A die-casting device for a lamp housing, characterized in that, The device includes a base (1), a side support (2), a lifting drive unit (3), and an upper mold (4). The side support (2) is installed on one side of the base (1). The lifting drive unit (3) is vertically installed on the top of the side support (2). The upper mold (4) is horizontally arranged and fixedly assembled to the bottom of the lifting drive unit (3). The lifting drive unit (3) is used to drive the upper mold (4) to rise or fall. The base (1) is also provided with a ring support frame (5), a rotating shaft (6), and a turntable (7). The rotating shaft (6) is vertically arranged and its bottom is rotatably assembled on the base (1). The turntable (7) is horizontally arranged and fixedly mounted on the top of the rotating shaft (6) in the middle. At least four sets of lower molds (10) are mounted on the turntable (7) and respectively form a die-casting station, a material unloading station, a cleaning station and a stripping liquid coating station. The top of the annular support frame (5) is supported on the bottom periphery of the turntable (7). A rotary drive unit (8) located inside the annular support frame (5) is provided between the base (1) and the rotating shaft (6). The rotary drive unit (8) is used to intermittently drive the turntable (7) to rotate so as to gradually switch the lower mold (10) to different stations.

2. The die-casting apparatus for lamp housings according to claim 1, characterized in that, The annular support frame (5) includes an annular steel cylinder (51) and multiple sets of bullseye balls (52). The annular steel cylinder (51) is vertically fixed on the base (1). The multiple sets of bullseye balls (52) are evenly spaced and fixed on the top surface of the annular steel cylinder (51). The bullseye balls (52) are in contact with the lower surface of the turntable (7).

3. The die-casting apparatus for lamp housings according to claim 1, characterized in that, The rotary drive unit (8) includes a servo drive motor (81), a gearbox (82), and a gear transmission assembly. The servo drive motor (81) and the gearbox (82) are both fixed on the base (1). The output end of the servo drive motor (81) is connected to the input shaft of the gearbox (82), and the gear transmission assembly is connected between the rotating shaft (6) and the output shaft of the gearbox (82).

4. The die-casting apparatus for lamp housings according to claim 3, characterized in that, The gear transmission assembly includes a large gear disk (83) and a small gear disk (84) that mesh and drive each other. The large gear disk (83) is fixed on the rotating shaft (6), and the small gear disk (84) is fixed on the output shaft of the reduction gearbox (82).

5. The die-casting apparatus for lamp housings according to claim 1, characterized in that, The base (1) is also provided with a die-casting support (9), which is located inside the annular support frame (5). When the lower mold (10) rotates to the position directly below the upper mold (4), the die-casting support (9) is activated to support the upper lower mold (10).

6. The die-casting apparatus for lamp housings according to claim 5, characterized in that, The die-casting support (9) includes a support platform (91) and multiple sets of synchronously operating support cylinders (92). The cylinder body of the support cylinder (92) is arranged vertically and its bottom is fixed on the base (1). The support platform (91) is arranged horizontally and fixed to the top of the telescopic rod of the multiple sets of support cylinders (92). The support platform (91) is located directly below the upper mold (4).

7. The die-casting apparatus for lamp housings according to claim 6, characterized in that, The lower surface of the turntable (7) is provided with a plurality of vertically arranged positioning holes (71), and the positioning holes (71) and the lower mold (10) are arranged in a one-to-one correspondence. The support platform (91) is provided with positioning pins (93). When the support platform (91) is raised to a high position and contacts the turntable (7), the positioning pins (93) are just inserted into the positioning holes (71).

8. The die-casting apparatus for lamp housings according to claim 1, characterized in that, The lifting drive unit (3) includes a lifting plate (31) and multiple sets of lifting cylinders (32) that work synchronously. The cylinder body of the lifting cylinder (32) is arranged vertically and the top is fixed on the side bracket (2). The lifting plate (31) is arranged horizontally and fixed to the bottom of the telescopic rod of the multiple sets of lifting cylinders (32). The upper mold (4) is fixed to the lower surface of the lifting plate (31).

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