Display middle frame injection mold

Abstract

The utility model discloses an injection mold for a middle frame of a display, and aims to solve the problems that when an existing injection mold for the middle frame of the display is demolded, a product is ejected relatively low, so that the product cannot be grabbed by a manipulator easily, and automatic production is difficult to realize. The mold comprises an upper mold base, an upper mold base plate, an upper mold plate, a lower mold plate and a lower mold base which are sequentially arranged, a sprue is formed in the upper mold base, an upper mold core is installed on the lower surface of the upper mold plate, a lower mold core is installed on the upper surface of the lower mold plate, and four movable mold cores are arranged on the left side, the right side, the front side and the rear side of the upper mold core and the lower mold core in a sliding mode. During demolding, the displayer middle frame is ejected out through the inclined ejector rods on the upper surface of the movable ejector plate, and meanwhile, the inclined guide rods on the movable mold drive the movable block and the movable mold core to slide towards the outer side and break away from the displayer middle frame mold cavity, so that the periphery of the displayer middle frame is completely exposed, grabbing of a mechanical arm is facilitated, and automatic production is better achieved.

Description

Technical Field

[0001] This utility model belongs to the field of display frame injection molding technology, specifically relating to a display frame injection mold. Background Technology

[0002] As a key device for information output, displays are widely used in various fields, from personal computers and laptops to smartphones, tablets, smart TVs, and industrial control terminals. With the continuous growth and diversification of consumer demand for display devices, the display industry is experiencing rapid development. The display frame, as a crucial component, not only protects internal components but also significantly impacts the display's appearance and overall performance. Injection molds, as key tools in the production of display frames, directly determine the quality, production efficiency, and cost of the frame through their design and manufacturing processes.

[0003] Existing display frame injection molds often use a slanted ejector structure to achieve product demolding. However, since the display frame is relatively narrow, the mold cavity is usually recessed inside the lower mold core. Ejecting the product too high during demolding increases the length and cost of the slanted ejector, while ejecting the product too low is not conducive to the gripping of the robot and makes it difficult to achieve automated production. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a display frame injection mold. This mold is designed to solve the problem that the product is ejected too low during demolding of the existing display frame injection mold, which is not conducive to the gripping of the robot arm and makes it difficult to realize automated production.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a display frame injection mold, which includes an upper mold base, an upper mold pad, an upper template, a lower template, and a lower mold base arranged sequentially. The upper mold base has a gate. An upper mold core is installed on the lower surface of the upper template, and a lower mold core is installed on the upper surface of the lower template. Four movable mold cores are slidably arranged on the left and right sides and the front and rear sides of the upper and lower mold cores. A display frame cavity is formed between the edges of the upper and lower mold cores and the four movable mold cores. The gate communicates with the display frame cavity. An ejector assembly is provided between the lower template and the lower mold base.

[0008] Preferably, the ejection assembly includes a movable top plate slidably connected to the upper surface of the lower mold base. Multiple mounting seats are installed on the front and left and right sides of the upper surface of the movable top plate. A T-shaped groove is opened inside the mounting seat. An inclined ejector rod is slidably connected inside the T-shaped groove. The top end of the inclined ejector rod extends into the interior of the lower mold core. Connecting seats are fixedly connected to the left and right sides of the lower mold plate and the lower mold base.

[0009] Furthermore, four sliding rods are fixedly connected between the lower template and the lower mold base, and the movable top plate is slidably sleeved on the outer surface of the sliding rods, with a first spring sleeved on the outer surface of the sliding rods.

[0010] Furthermore, a movable block is fixedly connected to the outer side of the movable mold core. A groove is provided on the lower surface of the movable block. Grooves are provided on the front and rear sides and the left and right sides of the upper surface of the lower mold plate. A slider is fixedly connected to the inner bottom wall of the groove. The slider is slidably connected inside the groove. A second spring is installed between the movable block and the lower mold core.

[0011] Furthermore, two inclined guide rods are fixedly connected to the lower surface of the upper template. The bottom end of the inclined guide rods gradually tilts to the outside of the upper template, and inclined guide holes corresponding to the inclined guide rods are opened on the upper surface of the movable block.

[0012] Furthermore, guide holes are provided at the four corners of the lower surface of the upper template, and guide posts corresponding to the guide holes are fixedly connected at the four corners of the upper surface of the lower template.

[0013] Furthermore, a gate sleeve is provided at the gate, and the gate has a conical structure.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features four movable mold cores that slide on the left and right sides and front and back sides of the upper and lower mold cores. When the display frame is demolded, multiple inclined ejector rods on the upper surface of the movable top plate push the display frame out. After ejection, the top buckle disengages from the latch formed on the display frame. At the same time, the inclined guide rod on the moving mold drives the movable block and movable mold cores to slide outward and disengage from the display frame mold cavity, thus completely exposing the four sides of the display frame, facilitating gripping by the robotic arm and better realizing automated production. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the frame of an existing display.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0020] Figure 4 This is the utility model Figure 3 A magnified structural diagram of point A in the middle.

[0021] Figure 5 This is the utility model Figure 3 A magnified structural diagram at point B in the middle.

[0022] Figure 6 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0023] Figure 7 This is a three-dimensional structural diagram of the lower mold core of this utility model.

[0024] Figure 8 This is a bottom-view three-dimensional structural diagram of the lower mold core of this utility model.

[0025] The labels in the attached diagram are as follows: 1. Upper mold base; 2. Upper mold backing plate; 3. Upper mold plate; 4. Lower mold plate; 5. Lower mold base; 6. Sprue; 7. Upper mold core; 8. Lower mold core; 9. Movable mold core; 10. Display frame cavity; 11. Ejector assembly; 1101. Movable top plate; 1102. Mounting base; 1103. T-slot; 1104. Angled ejector rod; 1105. Connecting base; 1106. Slide rod; 1107. First spring; 901. Movable block; 902. Slide groove; 903. Groove; 904. Slider; 905. Second spring; 906. Angled guide rod; 907. Angled guide hole; 301. Guide hole; 302. Guide post; 601. Sprue sleeve; 7. Existing display. Detailed Implementation

[0026] This specific embodiment is an injection mold for a display frame, and its structural schematic diagram is shown below. Figures 1-8 As shown, the mold includes an upper mold base 1, an upper mold pad 2, an upper template 3, a lower template 4, and a lower mold base 5 arranged sequentially. The upper mold base 1 has a gate 6. The lower surface of the upper template 3 is fitted with an upper mold core 7, and the upper surface of the lower template 4 is fitted with a lower mold core 8. Four movable mold cores 9 are slidably arranged on the left and right sides and the front and rear sides of the upper mold core 7 and the lower mold core 8. The edges of the upper mold core 7 and the lower mold core 8 and the four movable mold cores 9 form a display frame cavity 10. The movable mold cores 9 are part of the display frame cavity 10 and cooperate with the edges of the upper mold core 7 and the lower mold core 8 to inject the display frame after the mold is closed. The gate 6 is connected to the display frame cavity 10. An ejector assembly 11 is provided between the lower template 4 and the lower mold base 5. When demolding, the four movable mold cores 9 completely expose the four sides of the display frame, which facilitates the gripping of the robot and better realizes automated production.

[0027] like Figure 2 , Figure 3 and Figure 4As shown: In this embodiment, the ejection assembly 11 includes a movable top plate 1101 slidably connected to the upper surface of the lower mold base 5. Multiple mounting seats 1102 are installed on the front and left and right sides of the upper surface of the movable top plate 1101. A T-shaped groove 1103 is opened inside the mounting seat 1102. An inclined ejector rod 1104 is slidably connected inside the T-shaped groove 1103. The top end of the inclined ejector rod 1104 extends into the interior of the lower mold core 8. Connecting seats 1105 are fixedly connected to the left and right sides of the lower mold plate 4 and the lower mold base 5. In this way, by pushing the movable top plate 1101 to drive the inclined ejector rod 1104 to move upward, the formed display frame is detached from the lower mold core 8.

[0028] like Figure 2 and Figure 6 As shown: In this embodiment, four sliding rods 1106 are fixedly connected between the lower template 4 and the lower mold base 5. The movable top plate 1101 is slidably sleeved on the outer surface of the sliding rods 1106, and a first spring 1107 is sleeved on the outer surface of the sliding rods 1106. The movable top plate 1101 slides up and down along the sliding rods 1106 more stably. The first spring 1107 assists in the reset of the movable top plate 1101 and avoids the phenomenon of tilting and jamming.

[0029] like Figure 2 , Figure 3 and Figure 5 As shown: In this embodiment, a movable block 901 is fixedly connected to the outer side of the movable mold core 9. A groove 902 is provided on the lower surface of the movable block 901. Grooves 903 are provided on the front and rear sides and the left and right sides of the upper surface of the lower mold plate 4. A slider 904 is fixedly connected to the inner bottom wall of the groove 903. The slider 904 is slidably connected inside the groove 902. A second spring 905 is installed between the movable block 901 and the lower mold core 8. The two ends of the second spring 905 are fixedly connected. When the upper mold plate 3 and the lower mold plate 4 are closed, the second spring 905 will be compressed. When the upper mold plate 3 and the lower mold plate 4 are separated, the second spring 905 can assist in pushing the movable block 901 to slide outward along the slider 904, making the sliding more stable.

[0030] like Figure 3 , Figure 5 and Figure 7 As shown: In this embodiment, two inclined guide rods 906 are fixedly connected to the lower surface of the upper template 3. The bottom end of the inclined guide rod 906 gradually tilts to the outside of the upper template 3. An inclined guide hole 907 corresponding to the inclined guide rod 906 is opened on the upper surface of the movable block 901.

[0031] The upper template 3 and the lower template 4 are separated by a press. At this time, the upper template 3 drives the inclined guide rod 906 to move upward. As the bottom end of the inclined guide rod 906 gradually tilts to the outside of the lower template 4, the inclined guide rod 906 can drive the movable block 901 and the movable mold core 9 to slide outward and separate from the display frame mold cavity 10 during the sliding process in the inclined guide hole 907, which facilitates the demolding of the display frame.

[0032] like Figure 2 and Figure 6 As shown: In this embodiment, guide holes 301 are provided at the four corners of the lower surface of the upper template 3, and guide posts 302 corresponding to the guide holes 301 are fixedly connected at the four corners of the upper surface of the lower template 4. The guide holes 301 and guide posts 302 can ensure that the upper template 3 and the lower template 4 can be accurately aligned during the mold closing process, avoiding defects such as deviation of the middle frame size or flash caused by misalignment. At the same time, it can also ensure the smooth operation of the demolding mechanism, so that the demolding process can proceed smoothly.

[0033] like Figure 2 and Figure 3 As shown: In this embodiment, a gate sleeve 601 is provided at the gate 6, and the gate 6 has a conical structure; during use, when injection molding, the material enters the display frame cavity 10 formed by the upper mold core 7, the lower mold core 8 and the movable mold core 9 through the gate 6, which facilitates the injection molding of the display frame.

[0034] Working principle: During injection molding, the material enters the display frame cavity 10 formed by the upper mold core 7, lower mold core 8, and movable mold core 9 through the gate 6, until the material cools and forms the display frame. Then, the upper mold plate 3 and lower mold plate 4 are separated by the press. At this time, the upper mold plate 3 drives the inclined guide rod 906 to move upward. As the bottom end of the inclined guide rod 906 gradually tilts to the outside of the lower mold plate 4, the inclined guide rod 906 slides in the inclined guide hole 907, which drives the movable block 901 and the movable mold core 9 to slide outward and separate from the display frame cavity 10. Then, it pushes the movable top plate 1101 to drive the inclined top plate. The rod 1104 moves upward, detaching the formed display frame from the lower mold core 8. Simultaneously, because the inclined ejector rod 1104 is tilted and its bottom end can slide left and right with the movable top plate 1101 through the mounting base 1102 and the T-slot 1103, the inclined ejector rod 1104 can gradually move inward after moving upward. Finally, the undercut at the top of the inclined ejector rod 1104 disengages from the latch formed on the display frame, thereby quickly and effectively ejecting the display frame from the lower mold core 8. Since the four movable mold cores 9 completely expose the four sides of the display frame, it is easier for the robot to grasp it, thus better realizing automated production.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A display frame injection mold, the mold comprising an upper mold base (1), an upper mold pad (2), an upper template (3), a lower template (4), and a lower mold base (5) arranged sequentially, characterized in that: The upper mold base (1) is provided with a gate (6), the lower surface of the upper mold plate (3) is provided with an upper mold core (7), the upper surface of the lower mold plate (4) is provided with a lower mold core (8), four movable mold cores (9) are slidably arranged on the left and right sides and front and back sides of the upper mold core (7) and the lower mold core (8), and a display frame cavity (10) is formed between the edges of the upper mold core (7) and the lower mold core (8) and the four movable mold cores (9), the gate (6) is connected to the display frame cavity (10), and an ejector assembly (11) is provided between the lower mold plate (4) and the lower mold base (5).

2. The display frame injection mold according to claim 1, characterized in that, The ejection assembly (11) includes a movable top plate (1101) slidably connected to the upper surface of the lower mold base (5). Multiple mounting seats (1102) are installed on the front and left and right sides of the upper surface of the movable top plate (1101). A T-shaped groove (1103) is opened inside the mounting seat (1102). An inclined ejector rod (1104) is slidably connected inside the T-shaped groove (1103). The top end of the inclined ejector rod (1104) extends into the interior of the lower mold core (8). Connecting seats (1105) are fixedly connected to the left and right sides of the lower mold plate (4) and the lower mold base (5).

3. The display frame injection mold according to claim 2, characterized in that, Four sliding rods (1106) are fixedly connected between the lower template (4) and the lower mold base (5). The movable top plate (1101) is slidably sleeved on the outer surface of the sliding rods (1106). A first spring (1107) is sleeved on the outer surface of the sliding rods (1106).

4. The display frame injection mold according to claim 3, characterized in that, A movable block (901) is fixedly connected to the outer side of the movable mold core (9). A groove (902) is provided on the lower surface of the movable block (901). Grooves (903) are provided on the front and rear sides and the left and right sides of the upper surface of the lower template (4). A slider (904) is fixedly connected to the inner bottom wall of the groove (903). The slider (904) is slidably connected inside the groove (902). A second spring (905) is installed between the movable block (901) and the lower mold core (8).

5. The display frame injection mold according to claim 4, characterized in that, Two inclined guide rods (906) are fixedly connected to the lower surface of the upper template (3). The bottom end of the inclined guide rod (906) gradually tilts to the outside of the upper template (3). An inclined guide hole (907) corresponding to the inclined guide rod (906) is opened on the upper surface of the movable block (901).

6. The display frame injection mold according to claim 5, characterized in that, The upper template (3) has guide holes (301) at the four corners of its lower surface, and guide posts (302) corresponding to the guide holes (301) are fixedly connected to the four corners of the upper surface of the lower template (4).

7. The display frame injection mold according to claim 6, characterized in that, The gate (6) is provided with a gate sleeve (601), and the gate (6) has a conical structure.

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