Injection mold for an extremely narrow display machine frame

Abstract

The utility model discloses an injection mold of very narrow display machine frame relates to mold technical field, including fixed mould and movable mould, and the fixed mould's mould closing face is equipped with the glue inlet runner and first cooling assembly, and the glue inlet runner includes first glue inlet runner and second glue inlet runner, and first cooling assembly includes the front side waterway and rear side waterway who surrounds the shaping in the shaping cavity front side and rear side and the left side waterway and right side water route who surrounds the shaping in the shaping cavity left side and right side, and the mould closing face of movable mould is equipped with second cooling assembly, and second cooling assembly includes the front encircling waterway and rear encircling waterway who are parallel to fixed mould front side waterway and rear side waterway and the left encircling waterway and right encircling waterway who are parallel to fixed mould left side waterway and right side waterway, and each group waterway is independent single channel, and each group waterway is equipped with independent control unit, and independent control unit includes electromagnetic valve and temperature sensor. The utility model discloses can rapidly and evenly cool down in the injection molding process, avoids the situation that product deformation is caused because of temperature uneven.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an injection mold for an ultra-narrow display frame. Background Technology

[0002] Injection molds are essential pieces of equipment in the injection molding process, generally consisting of two parts: a moving mold (upper mold) and a fixed mold (lower mold). The moving mold is mounted on the moving platen of the injection molding machine, while the fixed mold is mounted on the fixed platen. During injection molding, the moving mold and the fixed mold close to form the gating system and cavity for the injection and molding of plastic. When the mold opens, the moving mold and the fixed mold separate, making it easy to remove the molded plastic product.

[0003] To ensure the stability of the molding process and the quality of the product, controlling the temperature of the injection mold is crucial. The mold typically contains cooling water channels that allow a coolant (such as warm water or oil) to flow, carrying away heat from the mold through heat exchange, thus achieving cooling. The design of these cooling water channels not only effectively controls the mold temperature, preventing product defects caused by overheating, but also accelerates the condensation and solidification of the plastic, improving production efficiency and product quality.

[0004] However, in practical applications, for plastic parts with special shapes or material requirements, general cooling water system settings may not be able to meet their precise processing needs. For example, for IML (In-Mold Labeling) coated structural parts, these structures are usually thin and weak, and local deformation is prone to occur during the molding process. Especially when using injection molds with general cooling water system settings, uneven cooling or inaccurate temperature control can lead to uneven heating of the parts during molding, causing deformation or bubble defects in the plastic parts, which seriously affects production efficiency and yield. Due to the occurrence of such deformation, additional trimming and processing are often required, further increasing production costs.

[0005] In view of this, the inventor conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0006] This utility model provides an injection mold for an ultra-narrow display frame, aiming to solve the problem of deformation or air bubbles caused by uneven cooling during the injection molding process of existing molds.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] An injection mold for an ultra-narrow display frame includes a fixed mold and a moving mold. After the fixed mold and the moving mold are closed, they form a molding cavity for component molding. The closing surface of the fixed mold is provided with a glue inlet channel and a first cooling assembly. The glue inlet channel includes a first glue inlet channel and a second glue inlet channel. The first glue inlet channel is symmetrically arranged on the front and rear sides of the molding cavity along the width direction of the mold, and the second glue inlet channel is symmetrically arranged on the middle of the left and right sides of the molding cavity along the length direction of the mold. The first cooling assembly includes four sets of independent rectangular closed water channels, which surround the molding cavity. The front and rear sides of the body have front and rear water channels, and the left and right water channels are formed around the left and right sides of the molding cavity. The mold closing surface of the moving mold is provided with a second cooling assembly, which includes four sets of independent rectangular closed water channels, namely the front and rear surrounding water channels parallel to the front and rear water channels of the fixed mold, and the left and right surrounding water channels parallel to the left and right water channels of the fixed mold. Each set of water channels is an independent single channel, and each set of water channels is provided with an independent control unit. The independent control unit includes a solenoid valve and a temperature sensor.

[0009] Furthermore, the first glue inlet channel includes a first glue inlet pipe, and the glue outlet end of the first glue inlet pipe is connected to a plurality of first glue outlets arranged in a distributed manner. The plurality of first glue outlets are arranged at equal intervals along the length direction of the molding cavity.

[0010] Furthermore, the aforementioned second glue inlet channel includes a second glue inlet pipe, and the glue outlet end of the aforementioned second glue inlet pipe is provided with two spaced-apart second glue outlets.

[0011] Furthermore, the aforementioned front waterway and the aforementioned rear waterway are arranged in a mirror-symmetric manner with reference to the center line of the aforementioned fixed mold length direction, and the aforementioned front waterway is also connected to a branch waterway, which extends towards the aforementioned right waterway and connects with the aforementioned rear waterway.

[0012] Furthermore, the aforementioned left-side water channel and the aforementioned right-side water channel are mirror-symmetrical with reference to the center line of the aforementioned fixed mold width direction.

[0013] Furthermore, the aforementioned front surrounding water channel and the aforementioned rear surrounding water channel are arranged in a mirror-symmetrical manner with reference to the center line of the moving mold length direction.

[0014] Furthermore, the aforementioned left surrounding water channel includes two first surrounding water channels spaced apart along the width direction of the moving mold, and the aforementioned right surrounding water channel includes two second surrounding water channels spaced apart along the width direction of the moving mold. The aforementioned left surrounding water channel and the aforementioned right surrounding water channel are arranged in a mirror-symmetric manner with the center line of the width direction of the moving mold as a reference.

[0015] As can be seen from the above description of the structure of this utility model, this utility model has the following advantages:

[0016] This invention, through a multi-point injection channel structure, effectively reduces the flow resistance of the rubber material within the molding cavity, ensuring the precision and surface quality of injection molding. Combined with the first and second cooling components on the fixed and moving molds, it allows for rapid and uniform cooling of all areas of the mold during injection molding, preventing deformation or stress concentration caused by uneven temperature distribution, thereby effectively improving the quality of the molded product and production efficiency. Furthermore, the solenoid valves and temperature sensors in the independent control unit can monitor and adjust the cooling effect of each water path in real time, ensuring the stability and adaptability of the mold under different operating conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the adhesive inlet channel of this utility model.

[0018] Figure 2 This is a schematic diagram of the glue inlet channel of this utility model in the glue injection molding machine frame.

[0019] Figure 3 This is a schematic diagram of the structure of the first cooling component on the fixed mold of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the moving mold of this utility model with a second cooling component.

[0021] Reference numerals: 10-Fixed mold; 11-First sprue; 111-First outlet; 12-Second sprue; 121-Second outlet; 13-Front water channel; 131-Branch water channel; 14-Rear water channel; 15-Left water channel; 16-Right water channel; 20-Moving mold; 21-Front surround water channel; 22-Rear surround water channel; 23-Left surround water channel; 24-Right surround water channel. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0023] Reference Figures 1 to 4An injection mold for an ultra-narrow display frame includes a fixed mold 10 and a moving mold 20. After the fixed mold 10 and the moving mold 20 are closed, they form a molding cavity for component molding. The closing surface of the fixed mold 10 is provided with a glue inlet channel and a first cooling assembly. The glue inlet channel includes a first glue inlet channel 11 and a second glue inlet channel 12. The first glue inlet channel 11 is symmetrically arranged on the front and rear sides of the molding cavity along the width direction of the mold, and the second glue inlet channel 12 is symmetrically arranged on the middle of the left and right sides of the molding cavity along the length direction of the mold. The first cooling assembly includes four sets of independent rectangular closed water channels: a front water channel 13 and a rear water channel 14 surrounding the front and rear sides of the molding cavity, and a left water channel 15 and a right water channel 16 surrounding the left and right sides of the molding cavity. The closing surface of the moving mold 20 is provided with a second cooling assembly. The cooling assembly includes four sets of independent rectangular closed water channels: a front surrounding water channel 21 and a rear surrounding water channel 22 parallel to the front water channel 13 and the rear water channel 14 of the fixed mold 10, and a left surrounding water channel 23 and a right surrounding water channel 24 parallel to the left water channel 15 and the right water channel 16 of the fixed mold 10. Each set of water channels is an independent single channel, and each set of water channels is equipped with an independent control unit. The independent control unit includes a solenoid valve and a temperature sensor. Since the solenoid valve and the temperature sensor are commonly used components in existing mold cooling systems, their principles will not be elaborated here, and they are not shown in the figure. In this embodiment, the cooling medium flowing in the first cooling assembly and the second cooling assembly can be cooling water or cooling oil. When applying, a suitable cooling medium is selected according to different product cooling requirements and temperature control accuracy.

[0024] This multi-point injection channel design effectively reduces the flow resistance of the material within the molding cavity, ensuring injection molding precision and surface quality. Combined with the first and second cooling components on the fixed mold 10 and moving mold 20, it allows for rapid and uniform cooling of all areas of the mold during injection molding, preventing deformation or stress concentration caused by uneven temperature distribution. This effectively improves the quality of the molded product and production efficiency. Furthermore, the solenoid valves and temperature sensors in the independent control unit can monitor and adjust the cooling effect of each water path in real time, ensuring the stability and adaptability of the mold under different operating conditions.

[0025] Reference Figure 1 and Figure 2 The first glue inlet channel 11 includes a first glue inlet pipe, the outlet end of which is connected to a plurality of first glue outlets 111 arranged in a distributed manner, the plurality of first glue outlets 111 being equally spaced along the length of the molding cavity; the second glue inlet channel 12 includes a second glue inlet pipe, the outlet end of which is provided with two spaced second glue outlets 121, wherein Figure 2The image shows the display frame. With the first and second glue outlets 111 and 121 distributed in a way, the molten material can be quickly filled and evenly distributed during the injection molding process, avoiding product defects caused by uneven material flow. Especially for products with high dimensional accuracy requirements, such as ultra-narrow display frames, this design can effectively reduce shrinkage and warping during the molding process, thereby ensuring the appearance quality and dimensional stability of the product.

[0026] Reference Figures 1 to 3 The front water channel 13 and the rear water channel 14 are arranged in a mirror-symmetric manner with reference to the center line of the fixed mold 10 along its length. The front water channel 13 is also connected to a branch water channel 131, which extends to the right water channel 16 and connects to the rear water channel 14. The left water channel 15 and the right water channel 16 are arranged in a mirror-symmetric manner with reference to the center line of the fixed mold 10 along its width. Figure 3 The cross-shaped dotted lines in the diagram represent the center lines of the length and width of the fixed mold 10. This symmetrical water channel design significantly improves cooling efficiency and ensures uniform temperature distribution during injection molding. Furthermore, the connection between the front water channel 13 and the rear water channel 14 via the branch water channel 131 not only enhances the heat exchange capacity between the water channels but also further optimizes the overall cooling effect of the mold. In addition, the mirror-symmetric layout of the left water channel 15 and the right water channel 16 makes the temperature control of the mold more balanced in the width direction, avoiding product quality problems caused by local overheating or insufficient cooling.

[0027] Reference Figures 1 to 4 The front and rear surrounding water channels 21 and 22 are arranged in a mirror-symmetric manner with reference to the centerline of the moving mold 20 along its length; the left surrounding water channel 23 includes two first surrounding water channels spaced apart along the width of the moving mold 20, and the right surrounding water channel 24 includes two second surrounding water channels spaced apart along the width of the moving mold 20. The left and right surrounding water channels 23 and 24 are arranged in a mirror-symmetric manner with reference to the centerline of the moving mold 20 along its width. Figure 4 The cross-shaped dotted lines in the diagram represent the center lines of the moving mold 20 in both the length and width directions. The mirror-symmetrical arrangement of the front and rear surrounding water channels 21 and 22 not only ensures the uniformity of temperature distribution along the length of the moving mold 20 but also effectively reduces the problem of thermal stress concentration caused by temperature differences, thereby reducing the risk of product deformation. The left and right surrounding water channels 23 and 24, through their dual-channel design arranged at intervals along the width of the moving mold 20, further enhance the cooling capacity while avoiding local overcooling or overheating.

[0028] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. An injection mold for an ultra-narrow display frame, comprising a fixed mold and a moving mold, wherein the fixed mold and the moving mold, after being closed, form a molding cavity for component molding, characterized in that: The mold closing surface of the fixed mold is provided with a glue inlet channel and a first cooling assembly. The glue inlet channel includes a first glue inlet channel and a second glue inlet channel. The first glue inlet channel is symmetrically arranged on the front and rear sides of the molding cavity along the width direction of the mold, and the second glue inlet channel is symmetrically arranged on the middle of the left and right sides of the molding cavity along the length direction of the mold. The first cooling assembly includes four sets of independent rectangular closed water channels, namely a front water channel and a rear water channel surrounding the front and rear sides of the molding cavity, and a left water channel and a right water channel surrounding the left and right sides of the molding cavity. The mold closing surface of the moving mold is provided with a second cooling assembly, which includes four sets of independent rectangular closed water channels, namely a front surrounding water channel and a rear surrounding water channel parallel to the front and rear water channels of the fixed mold, and a left surrounding water channel and a right surrounding water channel parallel to the left and right water channels of the fixed mold. Each water channel is an independent single channel, and each water channel is provided with an independent control unit. The independent control unit includes a solenoid valve and a temperature sensor.

2. The injection mold for the ultra-narrow display frame according to claim 1, characterized in that: The first glue inlet channel includes a first glue inlet pipe, and the glue outlet end of the first glue inlet pipe is connected to a plurality of first glue outlets arranged in a distributed manner. The plurality of first glue outlets are arranged at equal intervals along the length direction of the molding cavity.

3. The injection mold for the ultra-narrow display frame according to claim 1, characterized in that: The second glue inlet channel includes a second glue inlet pipe, and the glue outlet end of the second glue inlet pipe is provided with two spaced-apart second glue outlets.

4. The injection mold for the ultra-narrow display frame according to any one of claims 1 to 3, characterized in that: The front water channel and the rear water channel are arranged in a mirror symmetrical manner with the center line of the fixed mold length direction as the reference, and the front water channel is also connected to a branch water channel, which extends to the right water channel and communicates with the rear water channel.

5. The injection mold for the ultra-narrow display frame according to any one of claims 1 to 3, characterized in that: The left water channel and the right water channel are mirror-symmetrical about the center line of the fixed mold width direction.

6. The injection mold for the ultra-narrow display frame according to any one of claims 1 to 3, characterized in that: The front and rear surrounding water channels are arranged in a mirror-symmetric manner with the center line of the moving mold length direction as the reference.

7. The injection mold for the ultra-narrow display frame according to any one of claims 1 to 3, characterized in that: The left surrounding water channel includes two first surrounding water channels spaced apart along the width direction of the moving mold, and the right surrounding water channel includes two second surrounding water channels spaced apart along the width direction of the moving mold. The left surrounding water channel and the right surrounding water channel are arranged in a mirror-symmetric manner with the center line of the width direction of the moving mold as a reference.

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