Diaphragm processing die, diaphragm processing apparatus, and diaphragm processing method

Abstract

The application relates to the technical field of mold equipment, and discloses a diaphragm processing mold, a diaphragm processing device and a diaphragm processing method. The diaphragm processing mold comprises an upper mold base, a lower mold base, a heating structure, a driving structure, a pressing plate and an elastic assembly. The upper mold base is provided with an air inlet; the lower mold base is combined with the upper mold base to form a sealed cavity, and the lower mold base is provided with an air outlet and a jig. The jig is used for placing a product or for diaphragm molding, and is provided with a first through hole connected with the air outlet. The heating structure is arranged on the upper mold base and located in the sealed cavity. The driving structure is arranged on the upper mold base and located in the sealed cavity. The pressing plate is arranged on the driving structure and located between the heating structure and the jig. The elastic assembly is arranged on the jig and faces the pressing plate, and is used for placing a diaphragm and positioning the diaphragm. The diaphragm processing mold realizes the reduction of auxiliary stretching, the increase of the stretching rate of the diaphragm, the saving of materials, the shortening of the production cycle, the avoidance of the problems of sticking and printing and the avoidance of the problem of air trapping.

Description

Technical Field

[0001] This invention relates to the field of mold equipment technology, and in particular to a diaphragm processing mold, diaphragm processing equipment, and diaphragm processing method. Background Technology

[0002] With the continuous upgrading of mobile phones, tablets, electronic products, and automobiles, products are trending towards thinner, lighter, more aesthetically pleasing, and more diverse designs. To enhance the appearance and user experience, more and more product designs are adopting 3D structural housings. This typically involves bonding a film with a decorative layer, a substrate layer, and an adhesive backing layer to the back or surface of the 3D structural housing. This film can be used for lamination, IMD injection molding, or directly molded as a decorative part for the product housing. Various patterns and colors can be processed on the decorative layer to increase the product's aesthetics and diversity. However, existing film lamination or pre-forming equipment has limited functionality. When applying films to 3D structural housings, problems often arise such as film imprinting, poor venting leading to air bubbles, wrinkles, and warping between the film and the electronic product housing or fixture; or air entrapment, wrinkles, and warping during film molding. This results in large material spacing, material waste, long production cycles, high process costs, low efficiency, and low yield, and cannot meet the diverse production needs of today. Traditional mold design involves custom-designed complete sets of molds, which is time-consuming and costly. Summary of the Invention

[0003] The main objective of this invention is to provide a diaphragm processing mold, diaphragm processing equipment, and diaphragm processing method, which aims to solve the problems of existing diaphragm processing molds having limited functions and failing to meet the diverse production needs of today, as well as the technical problems of product air trapping, long production cycles, material waste, and easy generation of film marks.

[0004] To achieve the above objectives, the present invention provides a diaphragm processing mold, the diaphragm processing mold comprising:

[0005] Upper mold base, wherein the upper mold base is provided with an air inlet;

[0006] The lower mold base covers the upper mold base and forms a sealed cavity. The lower mold base is provided with an air outlet and a fixture. The fixture is used to place the product or to shape the diaphragm. The fixture is provided with a first through hole, which is connected to the air outlet.

[0007] A heating structure is disposed on the upper mold base and located within the sealed cavity;

[0008] A driving structure is disposed on the upper mold base and located within the sealed cavity;

[0009] A pressure plate is disposed on the drive structure and located between the heating structure and the fixture;

[0010] An elastic component is disposed on the fixture and facing the pressure plate, for placing and positioning the diaphragm.

[0011] Optionally, in one embodiment, the upper mold base further includes a first fixing plate and a first connecting rod, the first fixing plate being fixed to the inner wall of the upper mold base via the first connecting rod, and the heating structure being fixed to the surface of the first fixing plate facing the pressure plate.

[0012] Optionally, in one embodiment, the upper mold base is provided with a first groove, the air outlet of the air inlet is disposed in the first groove, the upper mold base further includes a diffuser plate and a second connecting rod, one end of the second connecting rod is fixed to the first groove, the diffuser plate is fixed to the other end of the second connecting rod and is located in the first groove, and there is a gap between the side wall of the diffuser plate and the inner side wall of the first groove.

[0013] Optionally, in one embodiment, the driving structure includes a first driving member and a second driving member, the first driving member and the second driving member are respectively disposed on the two inner walls of the upper mold base and located on both sides of the heating structure, for driving the pressure plate to move linearly toward the fixture, the pressure plate is provided with a plurality of second through holes, the second through holes being located between the heating structure and the diaphragm.

[0014] Optionally, in one embodiment, the fixture is provided with a second groove for fixing the product, the first through hole is located in the second groove, the first through hole is connected to the air outlet, and the air outlet of the air outlet is connected to an external device.

[0015] Optionally, in one embodiment, the lower mold base is provided with a third groove, and the diaphragm processing mold further includes a second fixing plate, the second fixing plate being disposed on the third groove, the material of the second fixing plate being a light-transmitting material, the third groove being provided with a UV curing lamp, the second fixing plate being provided with a third through hole, and the third through hole being connected to the air outlet.

[0016] Optionally, in one embodiment, the lower mold base is provided with multiple pipes, all of which are located directly below the third groove, and the center line of the pipes is parallel to the horizontal line, for conveying coolant and cooling the UV curing lamp.

[0017] Optionally, in one embodiment, the diaphragm processing mold has an observation window, which is disposed on the upper mold base or the lower mold base, for observing the internal condition of the diaphragm processing mold.

[0018] The present invention also provides a diaphragm processing device, the diaphragm processing device comprising: a hydraulic cylinder, a high-pressure air compressor, a vacuum pressure chamber, a vacuum pump, and the diaphragm processing mold, wherein the hydraulic cylinder is connected to the lower mold base of the diaphragm processing mold, the high-pressure air compressor is connected to the air inlet of the air inlet channel of the diaphragm processing mold, one end of the vacuum pressure chamber is connected to the air outlet of the air outlet channel of the diaphragm processing mold, and the other end is connected to the vacuum pump.

[0019] The present invention also provides a method for processing a diaphragm, comprising the following steps:

[0020] Open the upper mold base and the lower mold base;

[0021] Secure the product to the fixture;

[0022] The diaphragm is fixed to the elastic component;

[0023] The upper mold base and the lower mold base are covered to form a sealed cavity;

[0024] The heating structure is turned on to bake the diaphragm to soften it. At the same time, the air in the sealed cavity is extracted through the air outlet and the first through hole to create a vacuum in the sealed cavity.

[0025] The control drive structure drives the pressure plate to move downward, pressing the diaphragm onto the fixture, so that the diaphragm and the fixture form a sealed space. The first through hole is located in the sealed space, so that the first through hole continues to evacuate the vacuum only to the sealed space.

[0026] High-pressure gas is blown into the sealed cavity through the air inlet, causing the diaphragm to adhere tightly to the surface of the product.

[0027] The present invention also provides a method for processing a diaphragm, comprising the following steps:

[0028] Open the upper mold base and the lower mold base;

[0029] Fix the fixture inside the lower mold base;

[0030] The diaphragm is fixed onto the elastic component;

[0031] The upper mold base and the lower mold base are covered to form a sealed cavity;

[0032] The heating structure is turned on to bake the diaphragm to soften it. At the same time, the air in the sealed cavity is extracted through the air outlet and the first through hole to create a vacuum in the sealed cavity.

[0033] The control drive structure drives the pressure plate to move downward, pressing the diaphragm onto the fixture, so that the diaphragm and the fixture form a sealed space. The first through hole is located in the sealed space, so that the first through hole continues to evacuate the vacuum only to the sealed space.

[0034] High-pressure gas is blown into the sealed cavity through the air inlet, causing the diaphragm to be tightly adhered to the surface of the forming part of the fixture, thereby forming the diaphragm on the forming part.

[0035] In the technical solution provided by this invention, the upper mold base and the lower mold base are first opened, then the product is fixed on the fixture of the lower mold base, and the diaphragm is fixed on the elastic component. Next, the upper mold base and the lower mold base are closed, forming a sealed cavity inside the upper mold base and the lower mold base. An external device (vacuum pump) connected to the air outlet is used to evacuate the sealed cavity, while the heating structure is activated to bake the diaphragm. After baking, the heating structure is turned off, and the driving structure is activated, causing the driving structure to drive the pressure plate to move linearly towards the diaphragm. When the pressure plate presses down onto the elastic component... The device continues to move downwards, causing the elastic component to drive the diaphragm to move linearly toward the product until the diaphragm adheres to the fixture, forming a sealed space between the diaphragm and the product. The gas in the sealed space is then extracted to maintain a vacuum state. High-pressure gas is then blown into the sealed cavity through an external device (high-pressure air compressor) connected to the air inlet, creating a large pressure difference between the sealed space and the sealed cavities other than the sealed space. This causes the diaphragm to naturally adhere to the surface of the product. After the diaphragm is fully adhered to the product, the high-pressure air compressor and vacuum pump are turned off. Then, the upper mold base and the lower mold base are opened, and the product with the diaphragm attached is removed. This solution shortens the distance between the diaphragm and the product by pressing down the pressure plate after baking, thereby reducing the auxiliary stretching of the diaphragm. Because the diaphragm softens after baking, its extensibility increases, thus improving the elongation rate of the diaphragm and saving diaphragm material. Since vacuuming and baking are performed simultaneously, the production cycle is shortened. During baking, the diaphragm is fixed to the elastic component and not yet pressed down, maintaining a certain distance between the diaphragm and the product. This prevents the material from softening and sagging during baking, thus avoiding film marks from contacting the product surface. During vacuuming, the diaphragm is not yet pressed down, allowing the sealed cavity to be interconnected, preventing incomplete vacuuming due to pressure differences and air trapping during bonding. Attached Figure Description

[0036] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0037] Figure 1 This is an exploded view of a diaphragm processing mold according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic cross-sectional view of a diaphragm processing mold according to an embodiment of the present invention;

[0039] Figure 3 for Figure 2 A magnified view of a section at point B in the middle;

[0040] Figure 4 for Figure 2 A magnified view of a section at point C;

[0041] Figure 5 This is a schematic diagram of a diaphragm processing apparatus according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic flowchart of the first processing method of the present invention applied to a diaphragm processing mold;

[0043] Figure 7 This is a schematic flowchart of the second processing method of the present invention applied to diaphragm processing molds.

[0044] Among them, 10. Diaphragm processing mold; 11. Upper mold base; 110. Air inlet; 111. First fixing plate; 112. First connecting rod; 113. First groove; 114. Air diffuser; 115. Second connecting rod; a. Gap; 12. Lower mold base; 120. Air outlet; 121. Fixture; 122. First through hole; 123. First inner sidewall; 124. Second inner sidewall; 125. Second groove; 127. Third groove; 1 28. Pipeline; 13. Heating structure; 14. Drive structure; 140. First drive component; 141. Second drive component; 15. Pressure plate; 150. Second through hole; 16. Elastic component; 17. Diaphragm; 18. Second fixing plate; 180. Third through hole; 19. UV curing lamp; 20. Observation window; 21. Diaphragm processing equipment; 210. Hydraulic cylinder; 211. High-pressure air compressor; 212. Vacuum pressure chamber; 213. Vacuum pump. Detailed Implementation

[0045] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0046] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0047] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] like Figures 1 to 4As shown, an embodiment of the present invention discloses a diaphragm processing mold 10, which includes an upper mold base 11, a lower mold base 12, a heating structure 13, a driving structure 14, a pressure plate 15, and an elastic component 16. The upper mold base 11 is provided with an air inlet 110; the lower mold base 12 covers the upper mold base 11 and forms a sealed cavity. The lower mold base 12 is provided with an air outlet 120 and a fixture 121. The fixture 121 is used to place the product or for diaphragm molding, and the fixture 121 is provided with a first through hole 122. The first through hole 122 is connected to the air outlet 120; the heating structure 13 is disposed on the upper mold base 11 and located in the sealed cavity; the driving structure 14 is disposed on the upper mold base 11 and located in the sealed cavity; the pressure plate 15 is disposed on the driving structure 14 and located between the heating structure 13 and the fixture 121; the elastic component 16 is disposed on the fixture 121 and faces the side of the pressure plate 15, for placing the diaphragm 17 and positioning the diaphragm 17.

[0049] Specifically, the heating structure 13 can be an infrared (IR) baking oven or a ceramic baking pan, and infrared rays have strong penetrating power, high heating efficiency, and save baking time; the driving structure 14 includes a first driving component 140 and a second driving component 141, both of which can be cylinders; the elastic component 16 can be a spring pin; the product can be a 3D structure or a plane.

[0050] In this embodiment, when the diaphragm 17 is attached to the product, a layer of adhesive is applied to the surface of the diaphragm 17 facing the product to bond the diaphragm 17 and the product. First, the upper mold base 11 and the lower mold base 12 are opened. Then, the product is fixed on the fixture 121 of the lower mold base 12, and the diaphragm 17 is fixed on the elastic component 16. Next, the upper mold base 11 and the lower mold base 12 are closed, forming a sealed cavity inside the upper mold base 11 and the lower mold base 12. The sealed cavity is evacuated by an external device (vacuum pump 213) connected to the air outlet 120, while the heating structure 13 is turned on to bake the diaphragm 17. After baking, the heating structure 13 is turned off, and the driving structure 14 is turned on, causing the driving structure 14 to drive the pressure plate 15 towards the diaphragm. 17. Linear movement: When the pressure plate 15 presses down onto the elastic component 16, it continues to move downward, causing the elastic component 16 to drive the diaphragm 17 to move linearly toward the product until the diaphragm 17 adheres to the fixture 121, forming a sealed space between the diaphragm 17 and the product. The gas in the sealed space is then extracted to maintain a vacuum state. High-pressure gas is then blown into the sealed cavity through an external device (high-pressure air compressor 211) connected to the air inlet 110, thereby creating a large pressure difference between the sealed space and the sealed cavity other than the sealed space, causing the diaphragm 17 to naturally adhere to the surface of the product. After the diaphragm 17 is completely adhered to the product, the high-pressure air compressor 211 and vacuum pump 213 are turned off. Then, the upper mold base 11 and the lower mold base 12 are opened, and the product with the diaphragm 17 attached is taken out. This solution shortens the distance between the diaphragm 17 and the product by pressing down the pressure plate 15 after baking, thereby reducing the auxiliary stretching of the diaphragm 17. Since the diaphragm 17 softens after baking, its extensibility increases, thus improving the elongation rate of the diaphragm 17, saving diaphragm 17 material, reducing the spacing between diaphragm 17 panels and increasing its utilization rate, increasing the number of panels, improving production efficiency, and reducing process costs. Because vacuuming and baking are performed simultaneously, the production cycle is shortened. During baking, the diaphragm 17 is fixed to the elastic component 16 and has not yet been pressed down, maintaining a certain distance between the diaphragm 17 and the product. This prevents the material from softening and sagging during baking, thus avoiding film marks caused by contact with the product surface. During vacuuming, the diaphragm 17 has not yet been pressed down, allowing the sealed cavity to be interconnected, preventing air entrapment during bonding due to incomplete vacuuming caused by pressure differences.

[0051] When the diaphragm 17 is formed on the fixture 121, the diaphragm 17 does not need to be coated with a layer of glue, nor does it need to be a product. The fixture 121 is simply replaced with a fixture having a forming part for forming the diaphragm 17. The forming part has the shape required for forming the diaphragm 17. The diaphragm 17 is directly attached to the forming part of the fixture 121. After the diaphragm 17 cools down, the fixture 121 with the attached diaphragm 17 is removed, and the diaphragm 17 is demolded. Then the waste edges of the formed diaphragm are removed to obtain the diaphragm 17 with the shape of the forming part.

[0052] In one embodiment, the upper mold base 11 further includes a first fixing plate 111 and a first connecting rod 112. The first fixing plate 111 is fixed to the inner wall of the upper mold base 11 via the first connecting rod 112, and the heating structure 13 is fixed to the surface of the first fixing plate 111 facing the pressure plate 15.

[0053] In this embodiment, by setting the air inlet 110 inside the inner top wall of the upper mold base 11, fixing the first connecting rod 112 to the inner top wall of the upper mold base 11, setting the first fixing plate 111 on the first connecting rod 112, and setting the heating structure 13 on the surface of the first fixing plate 111 facing the pressure plate 15, when high-pressure gas is introduced into the air inlet 110, the first fixing plate 111 forms a certain obstruction to the high-pressure gas, preventing the high-pressure gas from directly blowing onto the heating structure 13 and damaging the heating structure 13.

[0054] In one embodiment, the upper mold base 11 is provided with a first groove 113, and the air outlet of the air inlet 110 is disposed in the first groove 113. The upper mold base 11 also includes a diffuser plate 114 and a second connecting rod 115. One end of the second connecting rod 115 is fixed to the first groove 113, and the diffuser plate 114 is fixed to the other end of the second connecting rod 115 and is located in the first groove 113. There is a gap a between the side wall of the diffuser plate 114 and the inner side wall of the first groove 113.

[0055] In this embodiment, the first groove 113 is provided on the inner top wall of the upper mold base 11, and then the second connecting rod 115 is fixed in the first groove 113. The air diffuser 114 is then fixed on the second connecting rod 115 and positioned in the first groove 113. The connection of the second connecting rod 115 creates a certain distance between the air diffuser 114 and the top surface of the first groove 113, which is beneficial for the flow of high-pressure gas. Furthermore, there is a gap a between the side wall of the air diffuser 114 and the inner side wall of the first groove 113. The gap a allows the high-pressure gas to blow towards the diaphragm 17, preventing the high-pressure gas from blowing in other directions and wasting production time. When high-pressure gas is introduced into the outlet of the air inlet 110 located in the first groove 113, the high-pressure gas passes sequentially through the space between the diffuser plate 114 and the top surface of the first groove 113 and the gap a between the side wall of the diffuser plate 114 and the inner side wall of the first groove 113, and is blown to various parts of the sealed cavity. The diffuser plate 114 disperses the blown high-pressure gas to a certain extent, preventing the high-pressure gas from being highly concentrated and blown onto a certain part, thus avoiding damage to the part.

[0056] In one embodiment, the driving structure 14 includes a first driving member 140 and a second driving member 141. The first driving member 140 and the second driving member 141 are respectively disposed on the two inner walls of the upper mold base 11 and located on both sides of the heating structure 13, for driving the pressure plate 15 to move linearly toward the fixture 121. The pressure plate 15 is provided with a plurality of second through holes 150, which are located between the heating structure 13 and the diaphragm 17. Specifically, both the first driving member 140 and the second driving member 141 can be cylinders.

[0057] The fixture 121 is provided with a second groove 125 for fixing the product. The first through hole 122 is located in the second groove 125 and is connected to the air outlet 120. The air outlet of the air outlet 120 is connected to an external device.

[0058] In this embodiment, the first driving member 140 is disposed on the first inner sidewall 123 of the upper mold base 11, and the second driving member 141 is disposed on the second inner sidewall 124 of the upper mold base 11. The first inner sidewall 123 and the second inner sidewall 124 are opposite sidewalls, and the first driving member 140 and the second driving member 141 are respectively located on both sides of the heating structure 13. The pressure plate 15 is transversely disposed across the ends of the first driving member 140 and the second driving member 141. The pressure plate 15 is located below the heating structure 13. Simultaneously, the first driving member 140 and the second driving member 141 are activated, driving the pressure plate 15 to move linearly towards the fixture 121. When the pressure plate 15 moves to contact the spring pin, it drives the elastic component 16 to move towards the fixture 121. Simultaneously, the downward movement of the elastic component 16 drives the diaphragm 17 to move towards the fixture 121. When the diaphragm 17 moves towards the fixture... When the first drive member 140 and the second drive member 141 are attached to the end face of the protruding edge of the fixture 121, the pressure plate 15 presses the elastic component 16 and the diaphragm 17 onto the end face of the protruding edge of the fixture 121. Then, the external device (high-pressure air compressor 211) connected to the air inlet 110 is turned on to blow high-pressure gas into the sealed cavity. The high-pressure gas is blown toward the diaphragm 17 through the second through hole 150 of the pressure plate 15. At the same time, the connection to the air outlet 120 is turned on. When the external device (vacuum pump 213) forms a sealed space with the product located in the second groove 125 to evacuate the diaphragm 17 by connecting to the first through hole 122 in the second groove 125 to the fixture 121, a large pressure difference is generated between the surface of the diaphragm 17 facing the pressure plate 15 and the surface of the diaphragm 17 facing the product. The surface of the diaphragm 17 facing the pressure plate 15 is under high pressure, and the surface of the diaphragm 17 facing the product is under low pressure. The high pressure makes the diaphragm 17 adhere more naturally to the surface of the product.

[0059] In one embodiment, the lower mold base 12 is provided with a third groove 127, and the diaphragm processing mold 10 further includes a second fixing plate 18, which is disposed on the third groove 127. The material of the second fixing plate 18 is a light-transmitting material. The third groove 127 is provided with a UV curing lamp 19. The second fixing plate 18 is provided with a third through hole 180, and the first through hole 122 is connected to the air outlet 120 through the third through hole 180.

[0060] The lower mold base 12 is provided with multiple pipes 128, all of which are located directly below the third groove 127, and the center line of the pipes 128 is parallel to the horizontal line, for conveying coolant and cooling the UV curing lamp 19.

[0061] In this embodiment, the second fixing plate 18 is used to fix the fixture 121 for placing the product. The second fixing plate 18 is provided with a plurality of fixing areas for fixing the fixture 121. Each fixing area can fix one fixture 121. Therefore, in the production process, by installing the fixture 121 in each fixing area, the film application of several products can be completed at one time, thereby improving production efficiency and saving production time. Alternatively, during a batch production process, by changing different fixtures 121, films for multiple different products can be produced simultaneously without the need to customize a complete set of film processing molds 10. The mold opening cycle of fixture 121 is short and the cost is low, thereby greatly reducing the production cycle and production cost. Alternatively, fixture 121 can be replaced with a fixture 121 having a forming part for forming film 17. The forming part has the shape required for forming film 17. Film 17 is attached to the forming part of fixture 121. After film 17 cools, fixture 121 with attached film 17 is removed, and film 17 is demolded. Then, the waste edges of the formed film are removed to obtain film 17 with the shape of the forming part. Therefore, it can meet the current diversified production needs. By setting a third groove 127 on the lower mold base 12 and placing a UV curing lamp 19 in the groove, and then covering the third groove 127 with a second fixing plate 18 having light-transmitting properties, after the high pressure makes the film 17 more naturally adhere to the surface of the product, the UV curing lamp 19 is turned on to cure and bake the adhesive applied to the surface of the film 17 facing the product. This adhesive can be UV adhesive, which can avoid the problem of the film 17 easily being pushed out of the impression, making the film 17 more firmly adhered to the product. Then, by setting multiple pipes 128 directly below the third groove 127 where the UV curing lamp 19 is set, and inputting coolant into the pipes 128, the coolant is used to cool the UV curing lamp 19 to prevent the accumulated heat from damaging the UV curing lamp 19.

[0062] In one embodiment, the diaphragm processing mold 10 has an observation window 20, which is disposed on the upper mold base 11 or the lower mold base 12 for observing the internal condition of the diaphragm processing mold 10. Specifically, by providing the observation window 20 on the side wall of the upper mold base 11 or the side wall of the lower mold base 12, the observation window 20 can be a transparent glass plate, allowing the user to observe in real time the baking status of the diaphragm 17 inside the diaphragm processing mold 10 (whether the diaphragm 17 has softened and sagged, and the extent of sag), the adhesion of the diaphragm 17 to the product, and the forming status of the diaphragm 17, so that the user can adjust parameters in a timely manner according to the real-time situation, shorten the trial molding time, and improve the trial molding efficiency.

[0063] like Figure 5 As shown, an embodiment of the present invention also discloses a diaphragm processing device 21, which includes a hydraulic cylinder 210, a high-pressure air compressor 211, a vacuum pressure chamber 212, a vacuum pump 213, and the diaphragm processing mold 10. The hydraulic cylinder 210 is connected to the lower mold base 12 of the diaphragm processing mold 10, the high-pressure air compressor 211 is connected to the air inlet of the air inlet 110 of the diaphragm processing mold 10, one end of the vacuum pressure chamber 212 is connected to the air outlet of the air outlet 120 of the diaphragm processing mold 10, and the other end is connected to the vacuum pump 213.

[0064] In this embodiment, the diaphragm processing mold 10 is first fixed in the diaphragm processing equipment 21, and the lower mold base 12 of the diaphragm processing mold 10 is connected to the hydraulic cylinder 210 of the diaphragm processing equipment 21, the air inlet of the air inlet 110 of the diaphragm processing mold 10 is connected to the high-pressure air compressor 211 of the diaphragm processing equipment 21, the air outlet of the air outlet 120 of the diaphragm processing mold 10 is connected to one end of the vacuum pressure chamber 212 of the diaphragm processing equipment 21, and the other end of the vacuum pressure chamber 212 of the diaphragm processing equipment 21 is connected to the vacuum pump 213. When the user presses the mold opening button on the diaphragm processing equipment 21, the hydraulic cylinder 210, upon receiving the mold opening command, opens the lower mold base 12 and the upper mold base 11. The user first fixes the product inside the fixture 121, and then fixes the diaphragm 17 onto the elastic component 16. The user then presses the mold closing command on the diaphragm processing equipment 21. Upon receiving the mold closing command, the hydraulic cylinder 210 closes the lower mold base 12 and the upper mold base 11, forming a sealed cavity. The heating structure 13 is activated to bake the diaphragm 17, while the vacuum pump 213 is activated. The vacuum pump 213 extracts air from the sealed cavity through the vacuum pressure chamber 212 and the air outlet 120. After baking is complete, the heating structure 13 is closed, and the drive structure 14 is activated to drive the pressure plate 15, causing the spring needle and the diaphragm 17 to move downwards until the diaphragm 17 is in contact with the fixture 121. The diaphragm 17 and the product located inside the fixture 121... A sealed space is formed. At this time, the vacuum pump 213 continuously extracts air from the sealed space, making the air pressure in the sealed space low. The high-pressure air compressor 211 is turned on and blows high-pressure gas into the vacuum-sealed cavity through the air inlet 110, so that the diaphragm 17 forms high pressure on the surface of the product. The high-pressure gas presses the diaphragm 17 against the surface of the product, so that the diaphragm 17 adheres to the product. The UV curing lamp 19 is turned on to cure and bake the adhesive applied to the surface of the diaphragm 17 facing the product, so that the diaphragm 17 is more firmly attached to the product. After the adhesive has cured and baked, the user presses the pressure relief command on the diaphragm processing equipment 21 to turn off the high-pressure air compressor 211 and the vacuum pump 213 to release the pressure. After the pressure is released, the diaphragm processing equipment 21 automatically executes the mold opening command to open the upper mold base 11 and the lower mold base 12. The user takes out the product with the diaphragm 17 attached.This solution shortens the distance between the diaphragm 17 and the product by pressing down the pressure plate 15 after baking, thereby reducing the auxiliary stretching of the diaphragm 17. Because the diaphragm 17 softens after baking, its extensibility increases, and it is easier to adhere or shape when it reaches its softening point. Therefore, the elongation rate of the diaphragm 17's extensibility is improved, saving diaphragm 17 material. Since vacuuming and baking are performed simultaneously, the production cycle is shortened. During baking, the diaphragm 17 is fixed to the elastic component 16 and has not yet been pressed down, maintaining a certain distance between the diaphragm 17 and the product. This prevents the material from softening and sagging during baking, thus avoiding film marks caused by contact with the product surface. During vacuuming, the diaphragm 17 has not yet been pressed down, allowing the sealed cavity to be interconnected, preventing incomplete vacuuming due to pressure differences and air trapping during bonding.

[0065] like Figure 6 As shown, embodiments of the present invention also disclose a diaphragm processing method, applied to the diaphragm processing mold, and / or applied to the diaphragm processing equipment, comprising the following steps:

[0066] S1. Open the upper mold base and the lower mold base;

[0067] In this step, the diaphragm processing mold is first fixed in the diaphragm processing equipment. The lower mold base of the diaphragm processing mold is connected to the hydraulic cylinder of the diaphragm processing equipment, the air inlet of the diaphragm processing mold is connected to the high-pressure air compressor of the diaphragm processing equipment, and the air outlet of the diaphragm processing mold is connected to one end of the vacuum pressure chamber of the diaphragm processing equipment. The other end of the vacuum pressure chamber of the diaphragm processing equipment is connected to the vacuum pump. When the user presses the mold opening button on the diaphragm processing equipment, the hydraulic cylinder receives the mold opening command and opens the lower mold base and the upper mold base.

[0068] S2. Secure the product to the fixture;

[0069] In this step, the user secures the product to the second groove of the fixture.

[0070] S3. Fix the diaphragm onto the elastic component;

[0071] In this step, the elastic component can be a spring pin. First, a layer of UV adhesive is coated on one surface of the diaphragm. Then, the surface of the diaphragm coated with UV adhesive is facing the product, and the diaphragm is fixed on the spring pin.

[0072] S4. Cover the upper mold base and the lower mold base to form a sealed cavity;

[0073] In this step, the user presses the mold closing command on the diaphragm processing equipment. After receiving the mold closing command, the hydraulic cylinder closes the lower mold base with the upper mold base to form a sealed cavity.

[0074] S5. The heating structure is turned on to bake the diaphragm to soften it. At the same time, the air in the sealed cavity is extracted through the air outlet and the first through hole to make the sealed cavity a vacuum state.

[0075] In this step, the heating structure can be an infrared (IR) baking oven or a ceramic baking pan. While the heating structure is turned on to bake the diaphragm, the vacuum pump is turned on. The vacuum pump extracts the air from the sealed cavity through the vacuum pressure chamber and the air outlet. After baking is complete, the heating structure is turned off.

[0076] S6. Control the drive structure to drive the pressure plate to move downward, press the diaphragm down and stick it to the fixture, so that the diaphragm and the fixture form a sealed space, and the first through hole is located in the sealed space, so that the first through hole continues to evacuate the sealed space only;

[0077] In this step, the drive structure includes a first drive component and a second drive component, both of which can be cylinders. Activating the drive structure causes the drive structure to drive the pressure plate, which in turn moves the spring needle and diaphragm downwards until the diaphragm adheres to the fixture. The diaphragm and the product located within the fixture form a sealed space. Since the first through hole is located within the sealed space, the vacuum pump continuously extracts air from the sealed space through the first through hole and the air outlet, resulting in low air pressure in the sealed space.

[0078] S7. High-pressure gas is blown into the sealed cavity through the air inlet to tightly adhere the diaphragm to the surface of the product, so that the diaphragm adheres to the product.

[0079] In this step, the high-pressure air compressor is turned on and high-pressure gas is blown into the vacuum-sealed cavity through the air inlet, creating high pressure on the surface of the diaphragm relative to the product. The high-pressure gas presses the diaphragm against the product surface, causing the diaphragm to adhere to the product. The UV curing lamp is then turned on to cure and bake the adhesive applied to the surface of the diaphragm facing the product, making the diaphragm adhere more firmly to the product. After the adhesive has cured and baked, the user presses the pressure relief command on the diaphragm processing equipment to turn off the high-pressure air compressor and vacuum pump and release the pressure. After the pressure is released, the diaphragm processing equipment automatically executes the mold opening command, opening the upper and lower mold bases, and the user removes the product with the diaphragm attached.

[0080] In this embodiment, by pressing down the pressure plate after baking and driving the elastic component and diaphragm to press down onto the fixture, the distance between the diaphragm and the product is shortened, reducing the auxiliary stretching of the diaphragm. Because the diaphragm softens after baking, its extensibility is improved, thus increasing the elongation rate of the diaphragm's extensibility and saving diaphragm material. Since vacuuming and baking are performed simultaneously, the production cycle is shortened. During baking, the diaphragm is fixed on the elastic component and has not yet been pressed down, maintaining a certain distance between the diaphragm and the product. This avoids the material softening and sagging during baking, which could cause film marks when it comes into contact with the product surface. During vacuuming, the diaphragm has not yet been pressed down, allowing all parts of the sealed cavity to communicate with each other, preventing air entrapment during bonding due to incomplete vacuuming caused by pressure differences.

[0081] like Figure 7 As shown, embodiments of the present invention also disclose a diaphragm processing method, applied to the diaphragm processing mold, and / or applied to the diaphragm processing equipment, comprising the following steps:

[0082] S10. Open the upper mold base and the lower mold base;

[0083] In this step, the diaphragm processing mold is first fixed in the diaphragm processing equipment. The lower mold base of the diaphragm processing mold is connected to the hydraulic cylinder of the diaphragm processing equipment, the air inlet of the diaphragm processing mold is connected to the high-pressure air compressor of the diaphragm processing equipment, and the air outlet of the diaphragm processing mold is connected to one end of the vacuum pressure chamber of the diaphragm processing equipment. The other end of the vacuum pressure chamber of the diaphragm processing equipment is connected to the vacuum pump. When the user presses the mold opening button on the diaphragm processing equipment, the hydraulic cylinder receives the mold opening command and opens the lower mold base and the upper mold base.

[0084] S11. Fix the fixture inside the lower mold base;

[0085] In this step, the user installs a fixture with a diaphragm-forming shape in the second groove into the lower mold base.

[0086] S12. Fix the diaphragm to the elastic component;

[0087] In this step, the elastic component can be a spring pin, and the diaphragm is fixed on the spring pin.

[0088] S13. Cover the upper mold base and the lower mold base to form a sealed cavity;

[0089] In this step, the user presses the mold closing command on the diaphragm processing equipment. After receiving the mold closing command, the hydraulic cylinder closes the lower mold base with the upper mold base to form a sealed cavity.

[0090] S14. The heating structure is turned on to bake the diaphragm to soften it. At the same time, the air in the sealed cavity is extracted through the air outlet and the first through hole to make the sealed cavity a vacuum state.

[0091] In this step, the heating structure can be an infrared (IR) baking oven or a ceramic baking pan. While the heating structure is turned on to bake the diaphragm, the vacuum pump is turned on. The vacuum pump extracts the air from the sealed cavity through the vacuum pressure chamber and the air outlet. After baking is complete, the heating structure is turned off.

[0092] S15. Control the drive structure to drive the pressure plate to move downward, press the diaphragm down and stick it to the fixture, so that the diaphragm and the fixture form a sealed space, and the first through hole is located in the sealed space, so that the first through hole continues to evacuate the sealed space only;

[0093] In this step, the drive structure includes a first drive component and a second drive component, both of which can be cylinders. Activating the drive structure causes the drive structure to drive the pressure plate, which in turn moves the spring needle and diaphragm downwards until the diaphragm adheres to the end face of the protruding edge of the fixture. The diaphragm and the interior of the fixture form a sealed space. Since the first through hole is located within the sealed space, the vacuum pump continuously extracts air from the sealed space through the first through hole and the air outlet, thus reducing the air pressure in the sealed space.

[0094] S16. High-pressure gas is blown into the sealed cavity through the air inlet to tightly adhere the diaphragm to the surface of the forming part of the fixture, so that the diaphragm is formed on the forming part.

[0095] In this step, a high-pressure air compressor is turned on and high-pressure gas is blown into the vacuum-sealed cavity through the air inlet. This creates high pressure on the surface of the diaphragm relative to the product, forcing the diaphragm against the forming part of the fixture. The forming part has the required shape for diaphragm forming, thus shaping the diaphragm onto the forming part of the fixture. After the diaphragm cools, the user presses a pressure relief command on the diaphragm processing equipment to turn off the high-pressure air compressor and vacuum pump, releasing the pressure. After pressure relief is complete, the diaphragm processing equipment automatically executes the mold opening command, opening the upper and lower mold bases. The user removes the fixture with the attached diaphragm and demolds the diaphragm, then removes the waste edges of the formed diaphragm, obtaining a diaphragm with the shape of the forming part. Therefore, this method can meet the diverse production needs of today.

[0096] In this embodiment, by pressing down the pressure plate after baking and driving the elastic component and diaphragm to press down onto the fixture, the distance between the diaphragm and the product is shortened, reducing the auxiliary stretching of the diaphragm. Because the diaphragm softens after baking and its extensibility is improved, the elongation rate of the diaphragm's extensibility is increased, saving diaphragm material. Since vacuuming and baking are carried out simultaneously, the production cycle is shortened.

[0097] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A diaphragm processing mold for attaching a diaphragm to a product or forming a diaphragm, characterized in that, The diaphragm processing mold includes: Upper mold base, wherein the upper mold base is provided with an air inlet; The lower mold base covers the upper mold base and forms a sealed cavity. The lower mold base is provided with an air outlet and a fixture. The fixture is used to place the product or to shape the diaphragm. The fixture is provided with a first through hole, which is connected to the air outlet. A heating structure is disposed on the upper mold base and located within the sealed cavity; A driving structure is disposed on the upper mold base and located within the sealed cavity; A pressure plate is disposed on the drive structure and located between the heating structure and the fixture; An elastic component is disposed on the fixture and facing the pressure plate, for placing and positioning the diaphragm, and for supporting the diaphragm above the fixture and maintaining a certain distance from the fixture. The driving structure is used to drive the pressure plate to move toward the fixture, so that the pressure plate pushes the elastic component to contract and drives the diaphragm to adhere to the fixture, so that a sealed space is formed between the diaphragm and the fixture, and the first through hole is located in the sealed space.

2. The diaphragm processing mold according to claim 1, characterized in that, The upper mold base also includes a first fixing plate and a first connecting rod. The first fixing plate is fixed to the inner wall of the upper mold base by the first connecting rod, and the heating structure is fixed to the surface of the first fixing plate facing the pressure plate.

3. The diaphragm processing mold according to claim 1 or 2, characterized in that, The upper mold base is provided with a first groove, and the air outlet of the air inlet is located in the first groove. The upper mold base also includes a diffuser plate and a second connecting rod. One end of the second connecting rod is fixed to the first groove, and the diffuser plate is fixed to the other end of the second connecting rod and located in the first groove. There is a gap between the side wall of the diffuser plate and the inner side wall of the first groove.

4. The diaphragm processing mold according to claim 1, characterized in that, The driving structure includes a first driving member and a second driving member. The first driving member and the second driving member are respectively disposed on the two inner walls of the upper mold base and located on both sides of the heating structure. They are used to drive the pressure plate to move linearly toward the fixture. The pressure plate is provided with a plurality of second through holes, which are located between the heating structure and the diaphragm.

5. The diaphragm processing mold according to claim 4, characterized in that, The fixture is provided with a second groove for fixing the product. The first through hole is located in the second groove and is connected to the air outlet. The air outlet of the air outlet is connected to an external device.

6. The diaphragm processing mold according to claim 1 or 5, characterized in that, The lower mold base is provided with a third groove, and the diaphragm processing mold also includes a second fixing plate. The second fixing plate is covered and disposed on the third groove. The material of the second fixing plate is a light-transmitting material. The third groove is provided with a UV curing lamp. The second fixing plate is provided with a third through hole, and the third through hole is connected to the air outlet.

7. The diaphragm processing mold according to claim 6, characterized in that, The lower mold base is provided with multiple pipes, all of which are located directly below the third groove, and the center line of the pipes is parallel to the horizontal line, for conveying coolant and cooling the UV curing lamp.

8. The diaphragm processing mold according to claim 1, characterized in that, The diaphragm processing mold has an observation window, which is located on the upper mold base or the lower mold base, for observing the internal condition of the diaphragm processing mold.

9. A diaphragm processing device, characterized in that, The diaphragm processing equipment includes: a hydraulic cylinder, a high-pressure air compressor, a vacuum pressure chamber, a vacuum pump, and a diaphragm processing mold as described in any one of claims 1-8. The hydraulic cylinder is connected to the lower mold base of the diaphragm processing mold, the high-pressure air compressor is connected to the air inlet of the air inlet channel of the diaphragm processing mold, one end of the vacuum pressure chamber is connected to the air outlet of the air outlet channel of the diaphragm processing mold, and the other end is connected to the vacuum pump.

10. A diaphragm processing method, applied to a diaphragm processing mold as described in any one of claims 1-8, or applied to a diaphragm processing equipment as described in claim 9, characterized in that, Includes the following steps: Open the upper mold base and the lower mold base; Secure the product to the fixture; The diaphragm is fixed to the elastic component; The upper mold base and the lower mold base are covered to form a sealed cavity; The heating structure is turned on to bake the diaphragm to soften it. At the same time, the air in the sealed cavity is extracted through the air outlet and the first through hole to create a vacuum in the sealed cavity. The control drive structure drives the pressure plate to move downward, pressing the diaphragm onto the fixture, so that the diaphragm and the fixture form a sealed space. The first through hole is located in the sealed space, so that the first through hole continues to evacuate the vacuum only to the sealed space. High-pressure gas is blown into the sealed cavity through the air inlet, causing the diaphragm to adhere tightly to the surface of the product.

11. A diaphragm processing method, applied to a diaphragm processing mold as described in any one of claims 1-8, or applied to a diaphragm processing equipment as described in claim 9, characterized in that, Includes the following steps: Open the upper mold base and the lower mold base; Fix the fixture inside the lower mold base; The diaphragm is fixed onto the elastic component; The upper mold base and the lower mold base are covered to form a sealed cavity; The heating structure is turned on to bake the diaphragm to soften it. At the same time, the air in the sealed cavity is extracted through the air outlet and the first through hole to create a vacuum in the sealed cavity. The control drive structure drives the pressure plate to move downward, pressing the diaphragm onto the fixture, so that the diaphragm and the fixture form a sealed space. The first through hole is located in the sealed space, so that the first through hole continues to evacuate the vacuum only to the sealed space. High-pressure gas is blown into the sealed cavity through the air inlet, causing the diaphragm to be tightly adhered to the surface of the forming part of the fixture, thereby forming the diaphragm on the forming part.

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