Floating bridge structure distributed multi-point micro-nano pulse pressure constant device

Abstract

The present application relates to floating bridge structure distribution multipoint type micro-nano pulse pressure constant device, including forming die, the inside of forming die has cavity, the inside of forming die is equipped with the suspension cavity that covers the outer surface of cavity, the suspension cavity is equipped with the floating bridge type self-adapting unit that can freely float;The outer surface of the cavity is equipped with distribution multipoint pressure detection unit, the distribution multipoint pressure detection unit is used to detect the pressure of each part of the outer surface of cavity, and the detected pressure data is transmitted to signal processing unit, and signal processing unit is electrically connected with pressure gas generating unit for regulating and controls its action.The present application can guarantee that the pressure of each part of cavity is at the set value, reaches the uniformity of each point forming pressure of precision transparent photosensitive component forming place, guarantees the precision and optical performance of precision transparent photosensitive component.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precision molding transparent photosensitive component manufacturing, in particular to a floating bridge structure distributed multi-point type micro-nano pulse pressure constant device. BACKGROUND

[0002] At present, most of the precision molding transparent photosensitive components are molded by molding dies. During molding, the molding pressure provided by the molding equipment is consumed in the molding process through the flow channel in the molding equipment and the molding cavity in the die, so that the pressure on each part of the molded product (precision molding transparent photosensitive component) is different, thereby causing the following defects:

[0003] 1. At present, the precision molding transparent photosensitive components (such as long-focus curved mirrors for automotive driving head-up display) are molded by molding dies. During molding, the pressure on each part of the molded product is different due to the pressure consumption in each part of the molding equipment, molding die and corresponding molding cavity, thereby causing the density, mass, position, structure, size, etc. of each part of the precision molded product to change slightly and unable to meet the design requirements.

[0004] 2. At present, the precision molding transparent photosensitive components (such as long-focus curved mirrors for automotive driving head-up display) are molded by molding dies. During molding, the pressure on each part of the molded product is different due to the pressure consumption in each part of the molding equipment, molding die and corresponding molding cavity, thereby causing the irregular changes of the intermolecular gaps in the precision molded product, the changes of the arrangement of atoms and the uncontrollability of the optical performance of the molded product.

[0005] 3. At present, the precision molding transparent photosensitive components (such as long-focus curved mirrors for automotive driving head-up display) are molded by molding dies. During molding, the pressure on each part of the molded product is different due to the pressure consumption in each part of the molding equipment, molding die and corresponding molding cavity, thereby causing the molding precision of each part of the molded product to be greatly limited, the precision of the product to be difficult to guarantee and the optical performance to be unable to meet the design requirements. SUMMARY

[0006] The present application aims to overcome the shortcomings of the prior art and provide a floating bridge structure distributed multi-point type micro-nano pulse pressure constant device to improve the molding quality of precision molding transparent photosensitive components.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] The floating bridge structure distributed multi-point type micro-nano pulse pressure constant device comprises a forming die, the forming die has a cavity inside, the forming die is provided with a suspension cavity wrapped outside the cavity, the suspension cavity is provided with a floating bridge type self-adaptive unit capable of freely floating, and the floating bridge type self-adaptive unit is used for providing self-adaptive pressure to each part of the outer surface of the cavity; the floating bridge type self-adaptive unit comprises a plurality of pressure self-adaptive floating bridge blocks connected in sequence and independent of each other, each pressure self-adaptive floating bridge block is connected to a pressure gas generating unit for adjustment through a respective pressure adjustment gas inlet and outlet; the outer surface of the cavity is provided with a distributed multi-point pressure detection unit, the distributed multi-point pressure detection unit is used for detecting the pressure of each part of the outer surface of the cavity and transmitting the detected pressure data to a signal processing unit, and the signal processing unit is electrically connected with the pressure gas generating unit for adjustment and controls the action of the pressure gas generating unit for adjustment;

[0009] During operation, the distributed multi-point pressure detection unit detects the pressure values of each part of the outer surface of the cavity in real time and transmits the pressure data to the signal processing unit, the signal processing unit compares and calculates the pressure data of each part with the pressure values of each part set during forming, controls the pressure gas generating unit for adjustment to output the required pressure gas to the corresponding pressure self-adaptive floating bridge block, and the pressure self-adaptive floating bridge block automatically adjusts the pressure of the part of the cavity that needs to be adjusted according to the delivered pressure gas.

[0010] Further, the adjacent two pressure self-adaptive floating bridge blocks are connected together through a connecting rope.

[0011] Further, the suspension cavity is filled with nitrogen.

[0012] Further, the pressure value in the floating bridge type self-adaptive unit is calculated by P n =P0+P, wherein:

[0013] P n is the pressure value required by each part in time during forming, unit: Mp;

[0014] P0 is a preset pressure value, unit: Mp;

[0015] P is a pressure value calculated according to the pressure value of each part detected in time and the set pressure value, unit: Mp.

[0016] By adopting the technical scheme, the present application has the beneficial effects that:

[0017] 1. The pressure of each part and point of the precision transparent photosensitive component during forming can be accurately controlled in time and dynamically, so that the precision and optical performance of the product are not affected by the different pressures of each part and point during forming.

[0018] 2. The floating bridge type adaptive unit can automatically adjust its attachment to the surface of the molding cavity according to the shape of the precision transparent photosensitive element to ensure that the pressure on each part of the precision transparent photosensitive element reaches the designed set value during molding, thus ensuring the precision and optical performance of the precision transparent photosensitive element. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0021] like Figure 1 As shown, the floating bridge structure distribution multi-point micro-nano pulse pressure constant device of the present invention includes a molding mold 1, a cavity 2 inside the molding mold 1, a suspension cavity 3 covering the outer surface of the cavity 2 inside the molding mold 1, and nitrogen gas inside the suspension cavity 3.

[0022] The suspension cavity 3 is equipped with a freely floating adaptive bridge unit 4, which provides adaptive pressure to various parts of the outer surface of the cavity 2. The adaptive bridge unit 4 consists of multiple sequentially connected and independent pressure adaptive floating bridge blocks 41, with adjacent pressure adaptive floating bridge blocks 41 connected together by a connecting hinge 42. Each pressure adaptive floating bridge block 41 is connected to the regulating pressure gas generating unit 5 through its own pressure regulating gas inlet / outlet 411. The outer surface of the cavity 2 is equipped with a distributed multi-point pressure detection unit 6, which is used to detect the pressure at various parts of the outer surface of the cavity 2 and transmit the detected pressure data to the signal processing unit 7. The signal processing unit 7 is electrically connected to the regulating pressure gas generating unit 5 and controls its operation.

[0023] During operation, molten plastic enters the cavity 2. The multi-point pressure detection unit 6 detects the pressure values ​​of various parts on the outer surface of the cavity 2 in real time and transmits the pressure data to the signal processing unit 7. The signal processing unit 7 compares and calculates the pressure data of each part with the pressure values ​​set during molding, and then controls the pressure gas generating unit 5 to output the required pressure gas to the corresponding pressure adaptive floating bridge block 41. The pressure adaptive floating bridge block 41 automatically adjusts the pressure of the parts of the cavity 2 that require pressure adjustment according to the pressure gas delivered, so as to ensure that the pressure of each part of the cavity 2 is at the set value, so as to achieve uniform molding pressure at each point of the precision transparent photosensitive component molding, and ensure the accuracy and optical performance of the precision transparent photosensitive component.

[0024] Among them, the pressure value in the floating bridge adaptive unit 4 is determined by P. n= P0+ Pcalculated, wherein:

[0025] P n — the pressure value required by each part at the time of molding, unit: Mp;

[0026] P0— the preset pressure value, unit: Mp;

[0027] P— the pressure value calculated according to the pressure value of each part detected in time and the preset pressure value, unit: Mp.

[0028] The specific embodiment of the present application is described above, but those skilled in the art should understand that this is only an example, and those skilled in the art can make various changes or modifications to this embodiment without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A multi-point micro / nano pulse pressure constant device for a floating bridge structure, comprising a molding die having a cavity inside, characterized in that: The molding die has a suspended cavity covering the outer surface of the cavity. This suspended cavity contains a freely floating adaptive unit, which provides adaptive pressure to various parts of the outer surface of the cavity. The adaptive unit comprises multiple sequentially connected and independent pressure-adaptive floating bridge blocks. Each pressure-adaptive floating bridge block is connected to a regulating pressure gas generating unit via its own pressure regulating gas inlet / outlet. The outer surface of the cavity is equipped with a distributed multi-point pressure detection unit, which detects the pressure at various points on the outer surface of the cavity and transmits the detected pressure data to a signal processing unit. The signal processing unit is electrically connected to and controls the regulating pressure gas generating unit. During operation, the distributed multi-point pressure detection unit detects the pressure values ​​of various parts on the outer surface of the cavity in real time and transmits the pressure data to the signal processing unit. The signal processing unit compares and calculates the pressure data of each part with the pressure values ​​set during molding, and then controls the pressure gas generating unit to output the required pressure gas to the corresponding pressure adaptive floating bridge block. The pressure adaptive floating bridge block automatically adjusts the pressure of the parts of the cavity that require pressure adjustment according to the pressure gas delivered. The pressure value in the floating bridge adaptive unit is determined by P. n =P0 + P is calculated, where: P n —The pressure values ​​required for each part during molding, in MPa; P0—Preset pressure value, unit: MPa; P—The pressure value calculated based on the pressure values ​​of various parts detected in real time and the set pressure value, in MPa.

2. The floating bridge structure distributed multi-point micro-nano pulse pressure constant device according to claim 1, characterized in that: Adjacent pressure-adaptive floating bridge blocks are connected together by a connecting hinge.

3. The floating bridge structure distributed multi-point micro-nano pulse pressure constant device according to claim 1, characterized in that: The suspension cavity is filled with nitrogen gas.

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