Light-emitting diode (LED) backlight source rubber frame demolding device

Abstract

The utility model discloses a light-emitting diode (LED) backlight rubber frame demoulding device which comprises a bottom plate welded at the bottom of an inner cavity of production equipment, a mould assembly is arranged in the inner cavity of the production equipment, the mould assembly comprises an opening fixing plate fixedly installed in the inner cavity of the production equipment, and an upper mould is fixedly installed at the bottom of the opening fixing plate. The air cylinder, the injection molding equipment and the mold assembly are used in cooperation, so that the backlight source rubber frame is subjected to injection molding, the motor, the first toothed wheel and the second toothed wheel are used in cooperation, the rotating rod rotates, then the first bevel gear is driven to rotate, and the threaded rod, the first bevel gear and the second bevel gear are used in cooperation, so that the backlight source rubber frame is subjected to injection molding. And then the lower mold moves downwards, so that the lower mold and the upper mold are separated, the inner cavity separated from the formed backlight source rubber frame falls to the top of the lower mold to complete demolding, and the purposes that demolding of the backlight source rubber frame is completed without cooperation of multiple devices, and demolding is completed through gravity while mold opening is conducted are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED backlight source rubber frame production, in particular to a demoulding device for an LED backlight source rubber frame. Background Art

[0002] The backlight rubber frame product is a component used in the backlight module of the LCD screen. It is usually produced and processed by injection molding. After the injection molding machine performs injection molding, it needs to be demolded. If automatic equipment is used for demolding, the cost is high. Therefore, it is necessary to design a demolding device for the LED backlight source rubber frame. A vertical injection molding machine is used, and the upper and lower molds are opened and the demolding is performed by gravity. The equipment cost is reduced without the need for multiple equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a demoulding device for a rubber frame of an LED backlight source, which adopts a vertical injection molding machine, utilizes upper and lower mold opening and gravity demoulding, and occupies a smaller area than a horizontal injection molding machine, does not require the coordination of multiple equipment to reduce equipment costs, so as to solve the problems raised by the above-mentioned background technology.

[0004] The utility model solves the above-mentioned technical problem with a technical solution as follows: a demolding device for a LED backlight source rubber frame, comprising a base plate welded to the bottom of an inner cavity of a production device, the inner cavity of the production device being provided with a mold assembly, the mold assembly comprising an open hole fixing plate fixedly installed in the inner cavity of the production device, an upper mold being fixedly installed at the bottom of the open hole fixing plate, a lower mold being provided at the bottom of the upper mold, internal threaded cylinders being welded on both sides of the top of the base plate, a threaded rod being threadedly connected to the inner cavity of the internal threaded cylinder, a mounting frame being welded in the middle of the bottom of the lower mold, a rotating rod being rotatably connected to the inner cavity of the mounting frame, bevel gears 1 being installed at both ends of the surface of the rotating rod, bevel gears 2 being fixedly installed on the surface of the threaded rod and meshing with bevel gear 1, a motor being fixedly installed inside the mounting frame, a toothed wheel 1 being fixedly installed on the output shaft of the motor, and a toothed wheel 2 being fixedly installed on the surface of the mounting frame and meshing with toothed wheel 1.

[0005] Preferably, the production equipment comprises a main frame, a cylinder is fixedly mounted on the top of the main frame, and an injection molding device is fixedly mounted on the output end of the cylinder.

[0006] Preferably, connecting rods are welded in the middle of both sides of the inner cavity of the main frame, and diagonal braces are welded at the front and rear of both sides of the main frame.

[0007] Preferably, a bearing member rotatably connected to the bottom of the lower mold is fixedly connected to the top of the surface of the threaded rod.

[0008] Preferably, telescopic rods fixedly connected to the top of the bottom plate are fixedly installed at the front and rear of both sides of the bottom of the lower mold.

[0009] Preferably, both sides of the surface of the mounting frame are sleeved with receiving sleeves welded to the bottom of the lower mold, and the rotating rod is rotatably connected to the inside of the receiving sleeves.

[0010] 1. The beneficial effect of the utility model is as follows: the utility model makes the backlight rubber frame injection-molded by the coordinated use of the cylinder, the injection molding equipment and the mold assembly; the motor, the toothed wheel one and the toothed wheel two are used to make the rotating rod rotate, and then drive the bevel gear one to rotate; the threaded rod, the bevel gear one and the bevel gear two are used to make the lower mold move downward, so that the lower mold and the upper mold are separated, and the molded backlight rubber frame is separated from the inner cavity and falls to the top of the lower mold to complete the demolding, so that the backlight rubber frame can be demolded without the cooperation of multiple equipment, and the purpose of using gravity to complete the demolding while opening the mold can be achieved.

[0011] 2. The utility model uses a plurality of telescopic rods in coordination to provide better support for the bottom of the lower mold, thereby improving the overall stability of the mold assembly during injection molding of the backlight source rubber frame, thereby ensuring the production quality of the backlight source rubber frame.

[0012] 3. The utility model provides a receiving sleeve to receive and limit the two ends of the rotating rod, thereby making the rotating rod rotate more stably in the inner cavity of the mounting frame, thereby ensuring the meshing of the bevel gear 1 and the bevel gear 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] in:

[0014] Figure 1 This is a main perspective schematic diagram of an embodiment of the utility model;

[0015] Figure 2 This is a bottom-up stereoscopic schematic diagram of an embodiment of the utility model;

[0016] Figure 3 This is a front perspective schematic diagram of an opening and demoulding device of an embodiment of the utility model;

[0017] Figure 4 It is a bottom-up stereoscopic schematic diagram of a power device in one embodiment of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Production equipment, 101. Main frame, 102. Cylinder, 103. Injection molding equipment, 104. Connecting rod, 105. Diagonal brace, 2. Bottom plate, 3. Mold assembly, 31. Opening fixing plate, 32. Upper mold, 33. Lower mold, 4. Internal threaded cylinder, 5. Threaded rod, 6. Bearing, 7. Mounting frame, 8. Rotating rod, 9. Bevel gear one, 10. Bevel gear two, 11. Telescopic rod, 12. Adapter sleeve, 13. Motor, 14. Toothed wheel one, 15. Toothed wheel two. DETAILED DESCRIPTION

[0020] Hereinafter, an embodiment of the LED backlight source rubber frame demoulding device of the present invention will be described with reference to the accompanying drawings.

[0021] Embodiment 1:

[0022] Figure 1-4 The utility model shows an LED backlight source rubber frame demoulding device of an embodiment of the utility model, which includes a bottom plate 2 welded to the bottom of the inner cavity of the production equipment 1: the inner cavity of the production equipment 1 is provided with a mold assembly 3, the mold assembly 3 includes a hole fixing plate 31 fixedly installed in the inner cavity of the production equipment 1, the bottom of the hole fixing plate 31 is fixedly installed with an upper mold 32, the bottom of the upper mold 32 is provided with a lower mold 33, both sides of the top of the bottom plate 2 are welded with internal threaded cylinders 4, the inner cavity of the internal threaded cylinder 4 is threadedly connected with a threaded rod 5, the top of the surface of the threaded rod 5 is fixedly connected with a bearing member 6 rotatably connected to the bottom of the lower mold 33, a mounting frame 7 is welded in the middle of the bottom of the lower mold 33, the inner cavity of the mounting frame 7 is rotatably connected with a rotating rod 8, both ends of the surface of the rotating rod 8 are installed with bevel gears 1 9, the surface of the threaded rod 5 is fixedly installed with a bevel gear 2 10 meshing with the bevel gear 1 9, the front and rear sides of the bottom of the lower mold 33 are fixedly installed A telescopic rod 11 fixedly connected to the top of the base plate 2 is provided. Through the coordinated use of multiple telescopic rods 11, the bottom of the lower mold 33 is better supported, thereby improving the overall stability of the mold assembly 3 in the injection molding of the backlight source rubber frame, thereby ensuring the production quality of the backlight source rubber frame. Both sides of the surface of the mounting frame 7 are sleeved with receiving sleeves 12 welded to the bottom of the lower mold 33, and the rotating rod 8 is rotatably connected to the inside of the receiving sleeve 12. Through the setting of the receiving sleeve 12, the two ends of the rotating rod 8 are supported and limited, so that the rotating rod 8 can rotate more stably in the inner cavity of the mounting frame 7, thereby ensuring the meshing of the bevel gear 1 9 and the bevel gear 2 10. A motor 13 is fixedly installed inside the mounting frame 7, and a toothed wheel 14 is fixedly installed on the output shaft of the motor 13. A toothed wheel 2 15 meshing with the toothed wheel 14 is fixedly installed on the surface of the mounting frame 7.

[0023] Embodiment 2:

[0024] Figure 1-4The utility model shows an LED backlight source plastic frame demoulding device of an embodiment of the utility model, which includes a bottom plate 2 welded to the bottom of the inner cavity of the production equipment 1: the production equipment 1 includes a main frame 101, a cylinder 102 is fixedly installed on the top of the main frame 101, an injection molding device 103 is fixedly installed on the output end of the cylinder 102, connecting rods 104 are welded in the middle of both sides of the inner cavity of the main frame 101, and diagonal braces 105 are welded on the front and back of both sides of the main frame 101. The inner cavity of the production equipment 1 is provided with a mold assembly 3, and the mold assembly 3 includes an open hole fixing plate 31 fixedly installed in the inner cavity of the production equipment 1, and the bottom of the open hole fixing plate 31 is fixedly installed There is an upper mold 32, and a lower mold 33 is arranged at the bottom of the upper mold 32. Internally threaded tubes 4 are welded on both sides of the top of the bottom plate 2, and the inner cavity of the internally threaded tube 4 is threadedly connected with a threaded rod 5. A mounting frame 7 is welded in the middle of the bottom of the lower mold 33, and the inner cavity of the mounting frame 7 is rotatably connected with a rotating rod 8. Bevel gears 1 9 are installed at both ends of the surface of the rotating rod 8, and a bevel gear 2 10 meshing with the bevel gear 1 9 is fixedly installed on the surface of the threaded rod 5. A motor 13 is fixedly installed inside the mounting frame 7, and a toothed wheel 14 is fixedly installed on the output shaft of the motor 13, and a toothed wheel 2 15 meshing with the toothed wheel 14 is fixedly installed on the surface of the mounting frame 7.

[0025] Working principle: When the utility model is used, the user operates the cylinder 102 so that the cylinder 102 drives the injection molding device 103 to move downward until the bottom end of the injection molding device 103 enters the hole at the top of the perforated fixing plate 31. At this time, the cylinder 102 stops running, and the injection molding device 103 performs injection molding into the inner cavity of the mold assembly 3. The above-mentioned cylinder 102 and the injection molding device 103 are prior arts, so they are not elaborated in detail. Before injection molding, a mold release agent needs to be applied to the inner cavity of the mold assembly 3. After the injection molding is completed, the cylinder 102 drives the injection molding device 103 to reset. At this time, the backlight source rubber frame has been formed, and then the motor 13 is operated, so that The toothed wheel 14 drives the toothed wheel 2 15 to rotate, which in turn causes the rotating rod 8 to rotate inside the mounting bracket 7, thereby causing the two bevel gears 1 9 to rotate. While the bevel gear 1 9 rotates, the bevel gear 2 10 drives the threaded rod 5 to rotate downward in the inner cavity of the internal threaded tube 4, and then the lower mold 33 is driven downward by the threaded rod 5 to disengage from the engagement with the upper mold 32. Due to the influence of its own gravity, the backlight source rubber frame automatically disengages from the inner cavity of the upper mold 32 and falls to the top of the lower mold 33. The demolding device, i.e., the upper and lower mold opening device, can achieve the purpose of demolding the backlight source rubber frame without the cooperation of multiple equipment, and using gravity to complete the demolding while opening the mold.

[0026] In summary: the LED backlight source rubber frame demoulding device, through the coordinated use of 102 and the injection molding equipment 103 and the mold assembly 3, makes the backlight source rubber frame injection molding, through the coordinated use of the motor 13, the toothed wheel 14 and the toothed wheel 2 15, the rotating rod 8 is rotated, and then the bevel gear 1 9 is driven to rotate, and through the coordinated use of the threaded rod 5, the bevel gear 1 9 and the bevel gear 2 10, the lower mold 33 moves downward, so that the lower mold 33 and the upper mold 32 are separated, and the molded backlight source rubber frame detaches from the inner cavity of 22 and falls to the top of the lower mold 33 to complete the demoulding, so that the backlight source rubber frame can be demoulded without the cooperation of multiple equipment, and the purpose of completing the demoulding by gravity while opening the mold can be achieved.

Claims

1. A demoulding device for a LED backlight source plastic frame, characterized in that: The invention comprises a bottom plate (2) welded to the bottom of the inner cavity of a production device (1); the inner cavity of the production device (1) is provided with a mold assembly (3); the mold assembly (3) comprises a perforated fixed plate (31) fixedly installed in the inner cavity of the production device (1); an upper mold (32) is fixedly installed at the bottom of the perforated fixed plate (31); a lower mold (33) is provided at the bottom of the upper mold (32); internal threaded cylinders (4) are welded on both sides of the top of the bottom plate (2); a threaded rod (5) is threadedly connected to the inner cavity of the internal threaded cylinder (4); and a threaded rod (5) is threadedly connected to the bottom of the lower mold (33). A mounting frame (7) is welded in the middle of the mounting frame (7), a rotating rod (8) is rotatably connected to the inner cavity of the mounting frame (7), bevel gears (9) are mounted on both ends of the surface of the rotating rod (8), a bevel gear (10) meshing with the bevel gear (9) is fixedly mounted on the surface of the threaded rod (5), a motor (13) is fixedly mounted inside the mounting frame (7), a toothed wheel (14) is fixedly mounted on the output shaft of the motor (13), and a toothed wheel (15) meshing with the toothed wheel (14) is fixedly mounted on the surface of the mounting frame (7).

2. The LED backlight source plastic frame demoulding device according to claim 1, characterized in that: The production equipment (1) comprises a main frame (101), a cylinder (102) is fixedly mounted on the top of the main frame (101), and an injection molding device (103) is fixedly mounted on the output end of the cylinder (102).

3. The LED backlight source plastic frame demoulding device according to claim 2, characterized in that: Connecting rods (104) are welded in the middle of both sides of the inner cavity of the main frame (101), and diagonal braces (105) are welded at the front and rear of both sides of the main frame (101).

4. The LED backlight source plastic frame demoulding device according to claim 3, characterized in that: A bearing member (6) is fixedly connected to the top of the surface of the threaded rod (5) and is rotatably connected to the bottom of the lower mold (33).

5. The LED backlight source plastic frame demoulding device according to claim 4, characterized in that: Telescopic rods (11) fixedly connected to the top of the bottom plate (2) are fixedly installed at the front and rear of both sides of the bottom of the lower mold (33).

6. The LED backlight source plastic frame demoulding device according to claim 5, characterized in that: Both sides of the surface of the mounting frame (7) are sleeved with receiving sleeves (12) welded to the bottom of the lower mold (33). The rotating rod (8) is rotatably connected to the interior of the receiving sleeve (12).

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