An injection molding mold for a display face frame

Abstract

The utility model relates to a kind of injection molding mould of display face frame, including base, the top of the base is fixed with vibration mechanism, top mould, shrinkable tube, support plate and horizontal plate, the bottom of the horizontal plate is fixed with electric hydraulic rod, and the telescopic end of electric hydraulic rod is downward and penetrates to the inside of shrinkable tube, the bottom of the electric hydraulic rod is fixed with the positioning plate located in the inside of shrinkable tube, the bottom of the positioning plate is fixed with the compression spring fixed with shrinkable tube, the top of top mould is fixed with the injection extruder of extrusion end penetration to its inside. The injection molding mould of display face frame, electric hydraulic rod drives top mould to move down and combine with bottom mould, injection extruder is extruded into hole and extruded into the inner cavity of top mould and bottom mould by melting raw material, top mould and bottom mould are made to produce high-frequency vibration by the operation of vibration mechanism to efficiently defoaming, so that product quality is improved.

Description

Technical Field

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

[0002] Plastic molds are tools used in the plastics processing industry in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Due to the wide variety of plastics and processing methods, as well as the varying complexity of plastic molding machines and plastic products, plastic molds also come in a variety of types and structures, and are often made according to the specific products being produced.

[0003] In the processing of a display frame, plastic is first heated and melted in the bottom heating barrel of an injection molding machine. Then, driven by the screw or plunger of the injection molding machine, it enters the mold cavity through the injection nozzle and the mold gating system. The plastic cools and hardens, and the product is demolded. However, sometimes air is trapped in the hot-melted product, which prevents the air inside the mold from being completely expelled during injection molding. Although the appearance is intact, the presence of air bubbles inside the product reduces the structural rigidity of the display frame, making it prone to cracking and damage. Therefore, an injection molding mold for a display frame is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an injection molding mold for a display frame, which has advantages such as high-frequency vibration defoaming, thus solving the problem of air bubbles inside the product due to the inability to completely expel air from the mold during injection molding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection molding mold for a display frame, comprising a base, a vibration mechanism for defoaming is fixed to the top of the base, a top mold is movably connected to the top of the vibration mechanism, a shrink tube is fixed to the top of the top mold, a support plate is fixed to the top of the base, a horizontal plate is fixed to the front of the support plate, an electric hydraulic rod for controlling the lifting and lowering of the mechanism is fixed to the bottom of the horizontal plate, and the telescopic end of the electric hydraulic rod is downward and penetrates into the shrink tube, a positioning plate located inside the shrink tube is fixed to the bottom of the electric hydraulic rod, a clamping spring fixed to the bottom of the positioning plate and fixed to the shrink tube, and an injection extruder with an extrusion end penetrating into the top of the top mold, the injection extruder being used to injection mold the mold body; The vibration mechanism includes four elastic components that are fixed around the top of the base. The top of the four elastic components is fixed with a bottom mold that is movably connected to the top mold. The top of the base is fixed with a vibration component that is in movable contact with the bottom mold.

[0006] Furthermore, a counterweight is fixed to the bottom of the base, and support legs are fixed around the bottom of the base. A force-equalizing block is fixed to the bottom of the support legs, and the vertical cross-section of the force-equalizing block is trapezoidal.

[0007] Furthermore, the elastic component includes a hollow rod fixed to the top of the base, and a solid rod fixed to the bottom mold is slidably connected to the inner surface of the hollow rod.

[0008] Furthermore, a limiting plate is fixed to the bottom of the solid rod, and a vibration spring is fixed to the top of the hollow rod, which is sleeved on the outer surface of the solid rod and fixed to the bottom of the bottom mold.

[0009] Furthermore, the vibration assembly includes a mounting base fixed to the top of the base, and a motor is fixed to the top of the mounting base, with the output axis of the motor pointing forward.

[0010] Furthermore, a rotating block is fixed to the outer surface of the motor output shaft, an impact groove is provided at the bottom of the bottom mold, and four impact blocks, each matching the impact groove, are fixed to the outer surface of the rotating block.

[0011] Furthermore, a vent hole is provided on the left side of the top of the top mold, and an extrusion hole is provided on the right side of the top of the top mold for the injection extruder to penetrate into the interior. Four limiting rods are fixed on the top of the base, and rubber pads are fixed on the top of the limiting rods.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects: The injection molding mold for the display bezel uses an electric hydraulic rod to move the top mold down and combine it with the bottom mold. The injection extruder squeezes the molten raw material into the inner cavities of the top and bottom molds through the extrusion hole. The operation of the vibration mechanism causes the top and bottom molds to vibrate at a high frequency, thereby efficiently defoaming and improving product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the planar structure of this utility model; Figure 2 This is a schematic diagram of the planar structure of the vibration mechanism of this utility model; Figure 3 This is a schematic diagram of the planar structure of the elastic component of this utility model; Figure 4 This is a perspective view of the vibration component of this utility model.

[0014] In the diagram: 1. Base, 2. Limiting rod, 3. Vibration mechanism, 301. Elastic component, 3011. Hollow rod, 3012. Solid rod, 3013. Limiting plate, 3014. Vibration spring, 302. Vibration component, 3021. Mounting base, 3022. Motor, 3023. Rotating block, 3024. Impact block, 303. Bottom mold, 4. Top mold, 5. Shrink tube, 6. Support plate, 7. Horizontal plate, 8. Electro-hydraulic rod, 9. Positioning plate, 10. Compression spring, 11. Injection extruder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 In this embodiment, an injection molding mold for a display bezel includes a base 1. Four limiting rods 2 are fixed to the top of the base 1. After the bottom mold 303 is squeezed and vibrated, it will move downward. The limiting rods 2 located below the bottom mold 303 can limit the maximum downward movement of the bottom mold 303. A rubber pad is fixed to the top of the limiting rod 2. The rubber pad itself is soft and can convert rigid contact into flexible contact when the limiting rod 2 contacts the bottom mold 303, thus preventing damage to the mold.

[0017] It should be noted that a counterweight is fixed to the bottom of the base 1. The counterweight can lower the center of gravity of the mechanism and make it more stable. Support legs are fixed around the bottom of the base 1. Force-equalizing blocks are fixed to the bottom of the support legs. The force-equalizing blocks can distribute the pressure at the bottom through their structure, making the mechanism more stable. The vertical cross-section of the force-equalizing blocks is trapezoidal, narrow at the top and wide at the bottom, which can further increase the contact area with the ground, thereby increasing the friction.

[0018] Furthermore, a vibration mechanism 3 for defoaming is fixed to the top of the base 1. A top mold 4 is movably connected to the top of the vibration mechanism 3. It should be noted that a vent hole is provided on the left side of the top of the top mold 4 to maintain the overall air pressure balance inside the mold. An extrusion hole, penetrated by the injection extruder 11, is provided on the right side of the top of the top mold 4 for extruding molten raw materials. A shrink tube 5 is fixed to the top of the top mold 4. A support plate 6 is fixed to the top of the base 1. A horizontal plate 7 is fixed to the front of the support plate 6. An electric hydraulic rod 8 for controlling the lifting and lowering of the mechanism is fixed to the bottom of the horizontal plate 7. The telescopic end of the electric hydraulic rod 8 extends downward and penetrates into the shrink tube 5. A positioning plate 9 located inside the shrink tube 5 is fixed at the bottom of the electric hydraulic rod 8. The positioning plate 9 can limit the telescopic end of the electric hydraulic rod 8 to prevent it from detaching from the shrink tube 5. A compression spring 10 fixed to the shrink tube 5 is fixed at the bottom of the positioning plate 9. When the telescopic end of the electric hydraulic rod 8 moves downward, it drives the positioning plate 9 to squeeze the compression spring 10, causing it to be squeezed and further generate elastic force to squeeze the top mold 4 downward, so that it is pressed by the elastic force. An injection extruder 11 with an extrusion end penetrating into the top of the top mold 4 is fixed at the top. The injection extruder 11 is used to inject the mold body.

[0019] During operation, the electric hydraulic rod 8 drives the top mold 4 to move down and combine with the vibration mechanism 3. The injection extruder 11 squeezes the molten raw material into the inner cavity of the mold through the extrusion hole. The operation of the vibration mechanism 3 causes the top mold 4 and the bottom mold 303 to vibrate at a high frequency, thereby defoaming.

[0020] Please see Figure 2-4 In order to eliminate air bubbles after injection molding, the vibration mechanism 3 in this embodiment includes four elastic components 301 that are fixed around the top of the base 1. It should be noted that the elastic component 301 includes a hollow rod 3011 fixed to the top of the base 1. A solid rod 3012 fixed to the bottom mold 303 is slidably connected to the inner surface of the hollow rod 3011. When compressed, the solid rod 3012 slides into the inner cavity of the hollow rod 3011, shortening the total length of the two and compressing the mechanism below.

[0021] It should be noted that the bottom of the solid rod 3012 is fixed with a limit plate 3013, and the top of the hollow rod 3011 is fixed with a vibration spring 3014 that is sleeved on the outer surface of the solid rod 3012 and fixed to the bottom of the bottom mold 303. The vibration spring 3014 is compressed from above, deforms itself and undergoes elastic deformation, and continuously accumulates elastic force so that the mechanism is constantly subjected to elastic force to restore its position.

[0022] In addition, the top of the four elastic components 301 is fixed with a bottom mold 303 that is movably connected to the top mold 4, and the top of the base 1 is fixed with a vibration component 302 that is movably in contact with the bottom mold 303. It should be noted that the vibration component 302 includes a mounting base 3021 fixed to the top of the base 1, and a motor 3022 is fixed to the top of the mounting base 3021. The output shaft of the motor 3022 is forward. When the motor 3022 is started, its output shaft drives the mechanism to rotate and continuously collide with the bottom mold 303 above to generate vibration.

[0023] It should be noted that a rotating block 3023 is fixed on the outer surface of the output shaft of the motor 3022. The output shaft of the motor 3022 drives the rotating block 3023 to rotate. An impact groove is provided on the bottom of the bottom mold 303. The impact groove is arc-shaped and can better receive the impact force. Four impact blocks 3024 are fixed on the outer surface of the rotating block 3023, each of which matches the impact groove. The impact blocks 3024 are driven to rotate by the rotating block 3023, thereby continuously colliding with the bottom of the bottom mold 303 to generate high-frequency vibration.

[0024] In general, the motor 3022 drives the four impact blocks 3024 to rotate, continuously colliding with the bottom of the bottom mold 303, thereby causing the solid rod 3012 to continuously slide into the inner cavity of the hollow rod 3011 and continuously compress the vibration spring 3014. The continuous accumulation of elastic force causes the mechanism to be continuously subjected to the elastic force that restores its position, causing the top mold 4 and the bottom mold 303 to vibrate at a high frequency.

[0025] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0026] The working principle of the above embodiments is as follows: During operation, the telescopic end of the electro-hydraulic rod 8 moves downward, causing the top mold 4 to move downward and contact the bottom mold 303. The telescopic end of the electro-hydraulic rod 8 drives the positioning plate 9 to compress the spring 10, causing it to be compressed and generate elastic force to press the top mold 4 downward, thus pressing it tightly. The injection extruder 11 extrudes the molten raw material into the inner cavity of the top mold 4 and the bottom mold 303 through the extrusion hole. The motor 3022 starts, and its output shaft drives the rotating block 3023 to rotate. The four impact blocks 3024 are driven by the rotating block 3023. The rotating mechanism continuously collides with the bottom of the bottom mold 303, causing the solid rod 3012 to slide into the inner cavity of the hollow rod 3011 and continuously compress the vibration spring 3014. The spring 3014 deforms and undergoes elastic deformation, continuously accumulating elastic force to restore the mechanism to its original position. This causes the top mold 4 and the bottom mold 303 to vibrate at a high frequency, effectively defoaming the raw materials in their inner cavities. The air in the bubbles is discharged through the vent holes, effectively preventing air bubbles from being present inside the produced display bezel, resulting in high product quality.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An injection molding mold for a display bezel, comprising a base (1), characterized in that: The top of the base (1) is fixed with a vibration mechanism (3) for vibration defoaming. The top of the vibration mechanism (3) is movably connected with a top mold (4). The top of the top mold (4) is fixed with a shrink tube (5). The top of the base (1) is fixed with a support plate (6). The front of the support plate (6) is fixed with a horizontal plate (7). The bottom of the horizontal plate (7) is fixed with an electric hydraulic rod (8) for controlling the lifting and lowering of the mechanism. The telescopic end of the electric hydraulic rod (8) is downward and penetrates into the shrink tube (5). The bottom of the electric hydraulic rod (8) is fixed with a positioning plate (9) located inside the shrink tube (5). The bottom of the positioning plate (9) is fixed with a compression spring (10) fixed to the shrink tube (5). The top of the top mold (4) is fixed with an injection extruder (11) with an extrusion end penetrating into it. The injection extruder (11) is used to injection mold the mold body. The vibration mechanism (3) includes four elastic components (301) that are fixed around the top of the base (1). The top of the four elastic components (301) is fixed with a bottom mold (303) that is movably connected to the top mold (4). The top of the base (1) is fixed with a vibration component (302) that is movably in contact with the bottom mold (303).

2. The injection molding mold for a display bezel according to claim 1, characterized in that: The base (1) has a counterweight fixed at its bottom, and support legs are fixed around the bottom of the base (1). A force equalizing block is fixed at the bottom of the support leg, and the vertical cross section of the force equalizing block is trapezoidal.

3. The injection molding mold for a display bezel according to claim 1, characterized in that: The elastic component (301) includes a hollow rod (3011) fixed to the top of the base (1), and a solid rod (3012) fixed to the bottom mold (303) is slidably connected to the inner surface of the hollow rod (3011).

4. The injection molding mold for a display bezel according to claim 3, characterized in that: The bottom of the solid rod (3012) is fixed with a limiting plate (3013), and the top of the hollow rod (3011) is fixed with a vibration spring (3014) that is sleeved on the outer surface of the solid rod (3012) and fixed to the bottom of the bottom mold (303).

5. The injection molding mold for a display bezel according to claim 1, characterized in that: The vibration assembly (302) includes a mounting base (3021) fixed to the top of the base (1), and a motor (3022) is fixed to the top of the mounting base (3021), with the output axis of the motor (3022) pointing forward.

6. The injection molding mold for a display bezel according to claim 5, characterized in that: A rotating block (3023) is fixed on the outer surface of the output shaft of the motor (3022). An impact groove is provided at the bottom of the bottom mold (303). Four impact blocks (3024) are fixed on the outer surface of the rotating block (3023) and each of them matches the impact groove.

7. The injection molding mold for a display bezel according to claim 1, characterized in that: The top mold (4) has a ventilation hole on the left side of the top and an extrusion hole through which the injection extruder (11) passes. The top of the base (1) is fixed with four limiting rods (2), and the top of the limiting rods (2) is fixed with rubber pads.

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