Ultra-thin LED lampshade injection mold with automatic stripping function

Abstract

The utility model relates to the technical field of LED (light-emitting diode) lampshade production, in particular to an ultra-thin LED lampshade injection mold with an automatic stripping function, which comprises a square bottom frame and an L-shaped top frame, the L-shaped top frame is fixedly mounted on the top surface of the square bottom frame and positioned at a frame at one end, and a lower mold cylinder is movably arranged in the square bottom frame; the outer wall of the lower mold barrel is intermittently impacted to accelerate removal of bubbles in liquid in the inner cavity, the quality of an injection-molded lampshade can be improved, the injection molding efficiency is improved, the injection molding time is shortened, the production cost is reduced, and the production cost is reduced. According to the injection molding device for the ultrathin Led lampshade, separation and stripping of the formed lampshade body and the inner wall of the lower mold cylinder can be assisted, on the basis, the lampshade body attached to the upper pressing block can be stripped conveniently through matched abutting and pressing of the abutting rod and the abutting disc assembly, multi-directional auxiliary stripping is achieved, and then the injection molding efficiency of the ultrathin Led lampshade is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED lampshade production technical field, concretely is the super thin type LED lampshade injection mold with automatic stripping function. BACKGROUND

[0002] Injection mold is composed of two parts of movable die and fixed die, movable die is installed on the moving template of injection molding machine, fixed die is installed on the fixed template of injection molding machine, movable die and fixed die are closed to constitute a pouring system and a cavity during injection molding, movable die and fixed die are separated to take out plastic products when the mold is opened, and now in order to improve the appearance and lightness of Led lamp, the external lampshade of the lamp body is thinner and thinner.

[0003] During the injection molding of the super thin Led lampshade, due to the continuous decrease of the thickness of the lampshade, part of the lampshade is easily attached to the inner wall surface of the upper mold or the cavity after pouring and cooling forming, so that the stripping difficulty of the lampshade body is gradually increased, thereby affecting the injection molding efficiency of the lampshade body.

[0004] In view of the technical defects, a solution is proposed. UTILITY MODEL CONTENT

[0005] The utility model discloses a purpose is to remove the air bubble in the cavity liquid by intermittent impact to the outer wall of the lower mold cylinder, which can not only improve the quality of the injection molded lampshade, but also assist the separation of the lampshade body after forming and the inner wall of the lower mold cylinder, on this basis, the stripping of the lampshade body attached to the upper pressing block is facilitated by using the resistance rod and resistance disc assembly cooperation and pressure, so as to realize multidirectional auxiliary stripping, and then improve the injection molding efficiency of the super thin Led lampshade.

[0006] The utility model discloses a purpose can be realized through the following technical scheme: the super thin type LED lampshade injection mold with automatic stripping function, including square bottom frame and L shape top frame, L shape top frame fixed mounting in square bottom frame top face one end frame department, the square bottom frame inside swingly provided with lower mold cylinder, and the lower mold cylinder is provided with the inner chamber of the conical lampshade structure, L shape top frame top inner wall is provided with the cylinder, and the cylinder bottom output passes through the push rod and is connected with the inverted convex type pressing plate, the inverted convex type pressing plate bottom fixed mounting has the upper pressing block of conical structure, the inverted convex type pressing plate outside and located upper pressing block upper end place swing sleeve joint has resistance disc.

[0007] Further, the T-shaped vertical rod is fixedly installed on the upper end face of the resistance disc at the front end, the rear end and both sides, and the top surface of the T-shaped vertical rod extends to the top surface of the inverted convex type pressing plate.

[0008] Further, the spring group one is wound and arranged on the outer portion of the T-shaped vertical rod at the upper end of the resistance disc, and the resistance rod is fixedly installed at the corresponding position of the four resistance discs on the inner wall of the top of the L-shaped top frame.

[0009] Further, the lower mold cylinder is externally fixedly installed with a limiting tooth ring at the bottom position, the inner wall of the bottom of the square bottom frame is sleeved with double shaft gears at opposite corners of the limiting tooth ring, one group of the double shaft gears is connected with the output end of the motor arranged at the inner wall of the bottom of the square bottom frame, and the other group of the double shaft gears is rotationally connected with the inner wall of the bottom of the square bottom frame through a rotating shaft.

[0010] Further, the front end, the rear end and the two sides of the lower mold cylinder are fixedly installed with wedge-shaped resisting strips at the upper end of the limiting tooth ring, the inner wall of the front end, the rear end and the two sides of the square bottom frame is provided with T-shaped horizontal rods, one end of the T-shaped horizontal rod extends to the outside of the square bottom frame, and the other end of the T-shaped horizontal rod extends to the side wall of the lower mold cylinder and is fixedly installed with a resisting plate.

[0011] Further, the T-shaped horizontal rod is externally wound with a spring group two between the inner wall of the square bottom frame and the resisting plate, and the end of the resisting plate away from the T-shaped horizontal rod is fixedly installed with a semi-cylindrical rubber resisting cylinder.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The utility model discloses a lower mold cylinder, a cylinder, an inverted convex type pressing plate, an upper pressing block, a resisting disc, a T-shaped vertical rod and a resisting rod are arranged, when injection molding, the cylinder drives the inverted convex type pressing plate, the upper pressing block and the resisting disc to sink downwards, the upper pressing block is inserted into the inner wall of the corresponding mold cavity, the resisting disc and the inverted convex type pressing plate are sequentially stacked and pressed at the top end surface of the lower mold cylinder, so that the upper pressing block is inserted into the mold cavity, and liquid fills the whole mold cavity.

[0014] When the material is removed, the inverted convex type pressing plate and the resisting disc continue to go upwards until the four groups of resisting rods press the corresponding T-shaped vertical rods, the four groups of T-shaped vertical rods are pressed and jointly press the resisting disc to sink, the spring group one is compressed, the resisting disc penetrates the inverted convex type pressing plate and pushes the top end of the formed lampshade, which assists the separation of the lampshade and the upper pressing block, improves the production efficiency of the lampshade.

[0015] 2. The utility model discloses a limiting tooth, a double shaft gear, a motor, a wedge-shaped resisting strip, a T-shaped horizontal rod and a rubber resisting cylinder are arranged, the motor drives one group of double shaft gears to rotate counterclockwise, so that the limiting tooth ring, the lower mold cylinder and the four groups of wedge-shaped resisting strips rotate clockwise, the curved surface of the rubber resisting cylinder is pressed by the inclined surface of the wedge-shaped resisting strip, so that the rubber resisting cylinder is pressed and temporarily moves away from the outer wall of the lower mold cylinder, until the wedge-shaped resisting strip passes the rubber resisting cylinder, the rubber resisting cylinder is reset and impacts the outer wall of the lower mold cylinder again, so that the inner cavity wall of the lower mold cylinder is impacted and vibrated, which breaks the bubbles in the slurry in the mold cavity, improves the injection molding quality of the lampshade, and facilitates the separation of the formed lampshade and the inner mold cavity of the lower mold cylinder, which is beneficial to rapid demolding and further improves the processing efficiency of the lampshade. BRIEF DESCRIPTION OF DRAWINGS

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the inverted convex pressure plate, upper pressure block, and abutment plate of this utility model.

[0020] Figure 4 This is a top view of the combination of the square base frame and the lower mold cylinder of this utility model.

[0021] In the diagram: 1. Square base frame; 2. L-shaped top frame; 3. Lower mold cylinder; 4. Cylinder; 5. Inverted convex pressure plate; 6. Upper pressure block; 7. Abutment plate; 8. T-shaped upright; 9. Spring coil one; 10. Abutment rod; 11. Limiting gear ring; 12. Double shaft gear; 13. Motor; 14. Wedge-shaped abutment bar; 15. T-shaped crossbar; 16. Abutment plate; 17. Spring coil two; 18. Rubber abutment cylinder. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example 1: Please refer to Figure 1 - Figure 4 As shown, an ultra-thin LED lampshade injection mold with automatic unloading function includes a square base frame 1 and an L-shaped top frame 2. The L-shaped top frame 2 is fixedly installed on the top surface of the square base frame 1 at one end of the frame. A lower mold cylinder 3 is movably installed inside the square base frame 1, and a conical lampshade structure cavity is provided inside the lower mold cylinder 3. A cylinder 4 is provided on the inner wall of the top of the L-shaped top frame 2, and the bottom output end of the cylinder 4 is connected to an inverted convex pressure plate 5 through a push rod. A conical upper pressure block 6 is fixedly installed at the bottom of the inverted convex pressure plate 5. A stop plate 7 is movably sleeved on the outside of the inverted convex pressure plate 5 and located at the upper end of the upper pressure block 6. T-shaped uprights 8 are fixedly installed on the upper surface of the stop plate 7 at the front, rear, and sides, and the top surface of the T-shaped uprights 8 extends to the top surface of the inverted convex pressure plate 5. A spring coil 9 is wound around the outside of the T-shaped uprights 8 at the upper end of the stop plate 7, and a stop rod 10 is fixedly installed on the inner wall of the top of the L-shaped top frame 2 at the corresponding positions of the four sets of stop plates 7.

[0024] Firstly, a certain amount of glue is injected into the cavity of the lower mold cylinder 3, and then the air cylinder 4 is started to drive the push rod to drive the inverted convex plate 5, the upper pressing block 6 and the stop plate 7 to sink downward until the upper pressing block 6 is inserted into the corresponding inner wall of the cavity, and the stop plate 7 and the inverted convex plate 5 are sequentially stacked and pressed at the top end surface of the lower mold cylinder 3, forcing the lower mold cylinder 3 to be in a closed state, and the upper pressing block 6 is inserted into the cavity to fill the entire cavity with liquid;

[0025] After a period of cooling, the inverted convex plate 5, the stop plate 7 and the formed lampshade are pulled upward by the air cylinder 4 again, part of the lampshade is directly separated from the upper pressing block 6, and part of the lampshade adhering to the outside of the upper pressing block 6 is separated from the upper pressing block 6 along with the continuous upward movement of the inverted convex plate 5 and the stop plate 7 until the four groups of T-shaped vertical rods 8 are pressed against the corresponding T-shaped vertical rods 8, and the four groups of T-shaped vertical rods 8 are pressed against the stop plate 7 to sink, the spring group ring 9 is compressed, and the stop plate 7 penetrates the inverted convex plate 5 and pushes the top end of the formed lampshade, which helps the lampshade separate from the upper pressing block 6 and improves the production efficiency of the lampshade.

[0026] Example two: please refer to Figure 2 and Figure 4 As shown in the drawings, the limit tooth ring 11 is fixedly installed at the bottom position outside the lower mold cylinder 3, the double shaft gear 12 is sleeved at the diagonal position of the inner wall of the bottom of the square bottom frame 1, one group of double shaft gears 12 is connected with the output end of the motor 13 arranged at the bottom inner wall of the square bottom frame 1, and the other group of double shaft gears 12 is rotatably connected with the bottom inner wall of the square bottom frame 1 through the rotating shaft, the wedge-shaped stop strip 14 is fixedly installed at the upper end of the limit tooth ring 11 at the front and rear ends and both sides of the lower mold cylinder 3, the T-shaped horizontal rod 15 is arranged at the front and rear ends and both sides of the inner wall of the square bottom frame 1, one end of the T-shaped horizontal rod 15 extends to the outside of the square bottom frame 1, the other end of the T-shaped horizontal rod 15 extends to the side wall of the lower mold cylinder 3 and is fixedly installed with the stop plate 16, the spring group ring 2 17 is wound between the inner wall of the square bottom frame 1 and the stop plate 16 outside the T-shaped horizontal rod 15, and the semi-cylindrical rubber stop cylinder 18 is fixedly installed at the end of the stop plate 16 away from the T-shaped horizontal rod 15;

[0027] And in the upper block 6 is inserted into the corresponding mold cavity, start the motor 13, it drives one set of double shaft gear 12 counterclockwise rotation, and under the meshing effect, drive the limit tooth ring 11, lower mold cylinder 3 clockwise rotation and another set of double shaft gear 12 counterclockwise rotation, therefore, four groups of wedge-shaped resistance strip 14 with lower mold cylinder 3 synchronous rotation, and utilize its inclined surface to resist the corresponding rubber resistance cylinder 18 curved surface, and force rubber resistance cylinder 18, resistance plate 16 and T-shaped crossbar 15 resist, spring group ring two 17 compression, rubber resistance cylinder 18 temporarily away from the outer wall of lower mold cylinder 3, until the wedge-shaped resistance strip 14 over rubber resistance cylinder 18, whereby, rubber resistance cylinder 18 because of the loss of wedge-shaped resistance strip 14 of the resistance and in the spring group ring two 17 reset under the resilience, and again impact the outer wall of lower mold cylinder 3, lower mold cylinder 3 cavity wall is impacted by vibration, so as to accelerate the breakage of the slurry in the mold cavity bubble, to improve the quality of lampshade injection;

[0028] It is worth mentioning that this kind of intermittent impact mode is also applicable to demolding, by intermittent impact on the outer wall of lower mold cylinder 3, so as to accelerate the separation of the formed lampshade and the lower mold cylinder 3, which is beneficial to rapid demolding and further improves the processing efficiency of the lampshade.

[0029] Working principle: the utility model discloses in use, first, the mold cavity inside lower mold cylinder 3 is injected with a certain amount of colloid, then start the cylinder 4, it utilizes the push rod to drive the inverted convex plate 5, upper block 6 and resistance disc 7 to sink downwards, until the upper block 6 is inserted into the corresponding mold cavity inner wall, resistance disc 7 and inverted convex plate 5 are sequentially superposed and resist at the top end surface of lower mold cylinder 3, force lower mold cylinder 3 to be airtight, and the liquid fills the whole mold cavity when the upper block 6 is inserted into the mold cavity.

[0030] Then, start the motor 13, it drives one set of double shaft gear 12 counterclockwise rotation, and under the meshing effect, drive the limit tooth ring 11, lower mold cylinder 3 clockwise rotation and another set of double shaft gear 12 counterclockwise rotation, therefore, four groups of wedge-shaped resistance strip 14 with lower mold cylinder 3 synchronous rotation, and utilize its inclined surface to resist the corresponding rubber resistance cylinder 18 curved surface, and force rubber resistance cylinder 18, resistance plate 16 and T-shaped crossbar 15 resist, spring group ring two 17 compression, rubber resistance cylinder 18 temporarily away from the outer wall of lower mold cylinder 3, until the wedge-shaped resistance strip 14 over rubber resistance cylinder 18, whereby, rubber resistance cylinder 18 because of the loss of wedge-shaped resistance strip 14 of the resistance and in the spring group ring two 17 reset under the resilience, and again impact the outer wall of lower mold cylinder 3, lower mold cylinder 3 cavity wall is impacted by vibration, so as to accelerate the breakage of the slurry in the mold cavity bubble;

[0031] After a period of cooling, then by using the cylinder 4 traction again, the reverse convex type pressing plate 5, the resistance plate 7 and the formed lampshade are pulled up, part of the lampshade is directly separated from the upper pressing block 6, and part of the lampshade adhered to the outside of the upper pressing block 6 is separated from the upper pressing block 6 along with the continuous upward movement of the reverse convex type pressing plate 5 and the resistance plate 7 until the four groups of resistance rods 10 respectively press the corresponding T-shaped vertical rods 8, the four groups of T-shaped vertical rods 8 are pressed and sink together to press the resistance plate 7, the spring group ring 9 is compressed, and the resistance plate 7 penetrates the reverse convex type pressing plate 5 and pushes the top end of the formed lampshade, thereby assisting the separation of the lampshade and the upper pressing block 6.

[0032] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. An ultra-thin LED lampshade injection mold with automatic unloading function, comprising a square base frame (1) and an L-shaped top frame (2), wherein the L-shaped top frame (2) is fixedly installed on the top surface of the square base frame (1) at one end of the frame, characterized in that: The square base frame (1) is movably provided with a lower mold cylinder (3), and the lower mold cylinder (3) is provided with a conical lampshade structure cavity. The L-shaped top frame (2) is provided with a cylinder (4) on its top inner wall, and the bottom output end of the cylinder (4) is connected to an inverted convex pressure plate (5) through a push rod. The bottom of the inverted convex pressure plate (5) is fixedly installed with a conical upper pressure block (6). The inverted convex pressure plate (5) is movably sleeved with a stop plate (7) on its outside and at the upper end of the upper pressure block (6).

2. The ultra-thin LED lampshade injection mold with automatic unloading function according to claim 1, characterized in that, The upper end face of the abutment plate (7) is fixedly installed with T-shaped uprights (8) at the front and rear ends and on both sides, and the top surface of the T-shaped uprights (8) extends to the top surface of the inverted convex pressure plate (5).

3. The ultra-thin LED lampshade injection mold with automatic unloading function according to claim 2, characterized in that, The T-shaped uprights (8) are all wrapped with spring coils (9) at the upper end of the abutment plate (7), and the inner wall of the top of the L-shaped top frame (2) is fixedly installed with abutment rods (10) at the corresponding positions of the four abutment plates (7).

4. The ultra-thin LED lampshade injection mold with automatic unloading function according to claim 1, characterized in that, A limiting gear ring (11) is fixedly installed on the bottom of the lower mold cylinder (3). A double-shaft gear (12) is sleeved on the inner wall of the bottom of the square base frame (1) at the diagonal of the limiting gear ring (11). The bottom of one set of the double-shaft gear (12) is connected to the output end of the motor (13) located on the inner wall of the bottom of the square base frame (1). The bottom of the other set of the double-shaft gear (12) is rotatably connected to the inner wall of the bottom of the square base frame (1) through a rotating shaft.

5. The ultra-thin LED lampshade injection mold with automatic unloading function according to claim 4, characterized in that, The lower mold cylinder (3) is fixedly installed with wedge-shaped abutments (14) at the front and rear ends and on both sides, and at the upper end of the limiting toothed ring (11). The square base frame (1) is provided with T-shaped crossbars (15) at the front and rear ends and on both sides of the inner wall. One end of the T-shaped crossbar (15) extends to the outside of the square base frame (1), and the other end of the T-shaped crossbar (15) extends to the side wall of the lower mold cylinder (3) and is fixedly installed with abutment plates (16).

6. The ultra-thin LED lampshade injection mold with automatic unloading function according to claim 5, characterized in that, The T-shaped crossbar (15) is surrounded by a spring coil (17) between the inner wall of the square base frame (1) and the abutment plate (16), and a semi-cylindrical rubber abutment cylinder (18) is fixedly installed at the end of the abutment plate (16) away from the T-shaped crossbar (15).

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