Multifunctional automatic forming machine for sound film

Abstract

The utility model discloses a sound film multifunctional automatic forming machine, is equipped with feeding mechanism, forming mechanism and cutting mechanism in proper order along X direction on the frame, is equipped with the partition temperature control element in the heating platen of forming mechanism, and is equipped with the flexible upper die plate on the upper die of forming. The utility model discloses a plurality of heating elements and water -cooling pipes are arranged on the hot pressing platen, can reach the purpose that every area temperature on heating platen is accurately controlled, avoids the influence of external environment to heating platen, ensures that every area of heating platen and its sound film board can keep the same temperature all the time, ensures that the sound film piece keeps the stable size precision after forming, and only needs to replace flexible upper die plate, can switch in the full -automatic continuous production and semi -automatic efficient production of sound film forming, and the equipment structure is simple, and the manufacturing cost is lower and is convenient for assembly and assembly, can satisfy the production need of different production mode and production scale.

Description

Technical Field

[0001] This utility model relates to the technical field of diaphragm forming equipment, and in particular to a multi-functional automatic diaphragm forming machine. Background Technology

[0002] The diaphragm is a component of a loudspeaker's vibration and a crucial part for electroacoustic conversion. In diaphragm forming equipment, the diaphragm is typically placed on a template and then hot-pressed. Specifically, the template covered with the diaphragm is placed on a heated platform, which is continuously heated to a set high temperature, held at that temperature, and then cooled until the diaphragm is fully formed and removed. To improve forming efficiency, multiple structures are usually set on a single template to simultaneously form multiple diaphragms (commonly four or nine). However, in actual production, due to external environmental influences, the outer areas of the heating platform often heat up more slowly but cool down more quickly. This results in inconsistent diaphragm thickness and dimensional accuracy within the same batch produced on the same template, directly affecting the sound quality of the finished loudspeaker. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a multi-functional automatic diaphragm forming machine, which can accurately control the temperature of each area on the heating plate, ensuring that the formed diaphragm maintains stable dimensional accuracy. Moreover, by simply changing the flexible upper template, it can switch between fully automatic continuous production and semi-automatic high-efficiency production of diaphragm forming. The equipment has a simple structure, low manufacturing cost, and is easy to assemble, meeting the production needs of different production modes and scales.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A multi-functional automatic diaphragm forming machine is used for automatically forming diaphragms. It includes a frame, on which a feeding mechanism, a forming mechanism, and a cutting mechanism are sequentially arranged along the X-direction. The feeding mechanism feeds a diaphragm strip onto the forming mechanism, which then heat-presses the diaphragm strip to form a diaphragm sheet. The cutting mechanism cuts the diaphragm sheet from the diaphragm strip. The forming mechanism includes an upper mold and a lower mold. The upper mold is connected to a first driving device and can move toward the lower mold under its drive. The lower mold is provided with a heating platform for supporting the diaphragm plate. The heating platform is provided with a plurality of heating elements arranged at equal intervals in the X direction and extending in the Y direction. Both ends of each heating element extend to the outside of the heating platform and are electrically connected to a temperature control element. A water-cooling pipe extending in the Y direction is provided between each pair of heating elements on the heating platform. Both ends of each water-cooling pipe extend to the outside of the heating platform and are connected to a water-cooling pipeline. The lower end of the upper mold is provided with a flexible upper template directly above the diaphragm plate. The orthographic projection area of ​​the flexible upper template is larger than that of the diaphragm plate, and its outline edges all fall outside the outline edges of the diaphragm plate. The flexible upper template can deform under the action of external force to press the diaphragm strip onto the diaphragm plate.

[0005] As a further explanation of the above technical solution: In the above technical solution, the flexible upper template includes a cavity that is connected to an air pump, and an elastic plate is provided at the end of the cavity facing the sound diaphragm plate.

[0006] In the above technical solution, the flexible upper template includes a flexible silicone plate disposed directly above the diaphragm plate.

[0007] In the above technical solution, the first driving device is a gas-liquid booster cylinder.

[0008] In the above technical solution, the feeding mechanism includes two feeding rollers arranged in the Z direction and horizontally set and extending in the Y direction. Both feeding rollers are horizontally mounted on the frame and located on the X-direction side of the diaphragm plate.

[0009] In the above technical solution, a material support mechanism is also provided between the feeding mechanism and the forming mechanism. The material support mechanism includes a second driving device and a material support roller connected to it. The material support roller is arranged parallel to the feeding roller and can be translated along the Z direction under the drive of the second driving device to support the diaphragm material strip between the feeding mechanism and the diaphragm plate.

[0010] In the above technical solution, a first pressing mechanism is also provided between the material support mechanism and the forming mechanism, including a third driving device and a first pressure plate that is connected to the third driving device and is horizontally arranged and extends in the Y direction. The first pressure plate can move in the Z direction under the drive of the third driving device to press the film strip against the frame.

[0011] In the above technical solution, the cutting mechanism includes a horizontally arranged material support platform and a cutter that is parallel to it and extends in the Y direction. The material support platform is located on the X-direction side of the lower mold. The cutter is connected to a fourth driving device and can move in the Z direction under its drive to cut the film strip on the material support platform.

[0012] In the above technical solution, a second pressing mechanism is also provided between the forming mechanism and the cutting mechanism, including a fifth driving device and a second pressure plate that is connected to the fifth driving device and is horizontally arranged and extends in the Y direction. The second pressure plate can move in the Z direction under the drive of the fifth driving device to press the film strip against the material support platform.

[0013] In the above technical solution, the material support platform includes two or more material support rods that are mounted on the frame and horizontally arranged and extend in the X direction. A slider extending in the Y direction is mounted on a plurality of the material support rods. The slider is connected to a sixth driving device and can slide on the material support rods under its drive. The second pressing mechanism is mounted on the X-direction end of the slider.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By arranging several heating elements on the hot press plate and setting several temperature control elements to independently control the heating temperature and duration of each heating element, and setting water cooling pipes between pairs of heating elements, the temperature of each area on the heating plate can be precisely controlled, avoiding the influence of the external environment on the heating plate, ensuring that each area of ​​the heating plate and the diaphragm plate on it can always maintain the same temperature, so as to consistently and stably heat the diaphragm strip attached to it, ensuring that the diaphragm sheet maintains stable dimensional accuracy after molding. Moreover, by simply changing the flexible upper template, it is possible to switch between fully automatic continuous production and semi-automatic high-efficiency production of diaphragm molding. The equipment has a simple structure, low manufacturing cost, and is easy to assemble and install, which can meet the production needs of different production modes and scales. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment; Figure 2 This is a schematic diagram of the internal structure of the heating plate in the first embodiment (only one water-cooling pipe is shown and the upper end of the heating plate in contact with the diaphragm plate is not shown). Figure 3 This is a schematic diagram of the feeding mechanism, the material support mechanism, and the first pressing mechanism in the first embodiment; Figure 4 This is a schematic diagram of the structure of the second pressing mechanism and the cutting mechanism in the first embodiment; Figure 5 This is a schematic diagram of the structure of the second embodiment.

[0016] In the picture: 1. Frame; 4. Water cooling piping; 5. Valves; 6. Material guide frame; 601. Material guide rollers; 200. Feeding mechanism; 21. Feeding roller; 300. Material support mechanism; 31. Second drive device; 32. Material support roller; 400. First clamping mechanism; 41. Third driving device; 42. First pressure plate; 500. Molding mechanism; 51. Upper mold; 52. Lower mold; 53. First driving device; 54. Heating platform; 55. Air pump; 56. Heating components; 57. Water cooling pipe; 58. Flexible upper mold plate; 59. Temperature sensing element. 600. Second clamping mechanism; 61. Fifth driving device; 62. Second pressure plate; 63. Slider; 64. Sixth driving device; 700. Cutting mechanism; 71. Material support platform; 72. Cutting blade; 73. Fourth drive device; 74. Material support rod; 800. Display device. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] Example 1

[0020] refer to Figure 1 The multi-functional automatic diaphragm forming machine is used for automatically forming diaphragms. It includes a frame 100, on which a feeding mechanism 200, a forming mechanism 500 and a cutting mechanism 700 are arranged sequentially along the X direction. The feeding mechanism 200 is used to feed the diaphragm strip to the forming mechanism 500. The forming mechanism 500 is used to heat-press the diaphragm strip to form a diaphragm. The cutting mechanism 700 is used to cut the diaphragm strip off the diaphragm strip.

[0021] refer to Figure 1 and Figure 2 The forming mechanism 500 includes an upper mold 51 and a lower mold 52. The upper mold 51 is connected to the first driving device 53 and can move towards the lower mold 52 under its drive. The lower mold 52 is provided with a heating plate 54 for supporting the diaphragm plate. The heating plate 54 is provided with a plurality of heating elements 56 arranged at equal intervals in the X direction and extending in the Y direction. Both ends of each heating element 56 extend to the outside of the heating plate 54 and are electrically connected to a temperature control element. The heating plate 54 has heating elements arranged in pairs. Each component 56 is equipped with a Y-direction extending water-cooling pipe 57. Both ends of each water-cooling pipe 57 extend to the outside of the heating platform 54 and are connected to the water-cooling pipeline 4. A flexible upper template 58 is provided at the lower end of the upper mold 51 directly above the diaphragm plate. The projected area of ​​the flexible upper template 58 is larger than that of the diaphragm plate, and its contour edges fall outside the contour edges of the diaphragm plate. The flexible upper template 58 can deform under external force to press the diaphragm strip onto the diaphragm plate. In this embodiment, the heating element 56 is a heating wire, and each heating wire has a temperature sensing element 59 at both ends. A valve 5 is provided between both ends of each water-cooling pipe 57 and the water-cooling pipeline 4. The first driving device 53 is a gas-liquid booster cylinder. To clearly demonstrate the internal structure of the heating platform 54, Figure 2 The image only shows the three water-cooling pipes 57 and the temperature sensing elements 59 at both ends of the two heating wires inside the heating plate 54, and does not show the end of the heating plate 54. The upper end of the end can fix the diaphragm plate, and the lower end can fix the heating element 56, the water-cooling pipes 57 and the temperature sensing elements 59.

[0022] In this embodiment, the flexible upper template 58 includes a cavity communicating with an air pump 55. An elastic plate is provided at the end of the cavity facing the diaphragm plate. Each valve 5 is a solenoid valve. The frame 100 is also provided with an industrial control center and a display device 800. The industrial control center is electrically connected to the drive device of each mechanism and its sensing element so as to accurately control the action of each mechanism. It is also electrically connected to the air pump 55, each temperature control element, each temperature sensing control element 59 and each valve 5 so as to accurately control the temperature of each area on the heating platform 54.

[0023] During the molding process, each temperature control component controls the heating temperature and duration of a heating component 56, and each valve 5 controls the inflow and outflow of coolant in the water-cooling pipe 57. The two work together to achieve precise control of the temperature of each area on the heating plate 54, avoid the influence of the external environment on the heating plate 54, and ensure that each area on the heating plate 54 can always maintain the same temperature. This ensures that the sound diaphragm on it is at the same temperature, so that the sound diaphragm material attached to it can be heated and molded stably. This ensures that the sound diaphragm maintains stable dimensional accuracy after molding.

[0024] refer to Figure 3 The feeding mechanism 200 includes two feeding rollers 21 arranged in the Z direction and horizontally set and extended in the Y direction. Both feeding rollers 21 are horizontally mounted on the frame 100 and located on the X-direction side of the diaphragm plate.

[0025] In order to further stretch the material strip and prevent the diaphragm material strip from falling and being contaminated by foreign objects, this embodiment also provides a material support mechanism 300 between the feeding mechanism 200 and the forming mechanism 500. The material support mechanism 300 includes a second driving device 31 and a material support roller 32 connected to it. The material support roller 32 is arranged parallel to the feeding roller 21 and can be translated along the Z direction under the drive of the second driving device 31 to support the diaphragm material strip between the feeding mechanism 200 and the diaphragm plate.

[0026] To ensure that the diaphragm strip remains stable during the hot pressing process, a first pressing mechanism 400 is provided between the material support mechanism 300 and the forming mechanism 500. This mechanism includes a third driving device 41 and a first pressure plate 42 that is connected to the third driving device 41, is horizontally positioned, and extends in the Y direction. The first pressure plate 42 can move in the Z direction under the drive of the third driving device 41 to press the diaphragm strip against the frame 100.

[0027] In this embodiment, to facilitate the smooth entry of the unwound diaphragm material into the feeding mechanism 200, a guide frame 6 is also provided on the side of the feeding structure 200 on the frame 100. Several Y-direction extending guide rollers 601 are arranged along the Z-direction on the guide frame 6 to guide the diaphragm material after unwinding from the roll. The unwinding mechanism of the roll is prior art and common knowledge to those skilled in the art; its structure will not be described in detail here. Figure 1 The unwinding mechanism is not shown in the diagram.

[0028] refer to Figure 4 The cutting mechanism 700 includes a horizontally arranged material support platform 71 and a cutter 72 that is parallel to it and extends in the Y direction. The material support platform 71 is located on the X-direction side of the lower mold 52. The cutter 72 is connected to the fourth drive device 73 and can move in the Z direction under its drive to cut the film strip on the material support platform 71.

[0029] To prevent the diaphragm material from slipping off the equipment after cutting, this embodiment also provides a second pressing mechanism 600 between the forming mechanism 500 and the cutting mechanism 700. The mechanism includes a fifth driving device 61 and a second pressure plate 62 that is connected to the fifth driving device 61, is horizontally arranged, and extends in the Y direction. The second pressure plate 62 can move in the Z direction under the drive of the fifth driving device 61 to press the diaphragm material against the material support platform 71.

[0030] To facilitate appropriate adjustment of the tension of the diaphragm strip on the forming mechanism 500 according to actual production conditions, in this embodiment, the second pressing mechanism 600 is slidably mounted on the frame 100. The material support platform 71 includes two or more material support rods 74 that are mounted on the frame 100, horizontally arranged, and extend in the X direction. A slider 63 extending in the Y direction is mounted on several material support rods 74. The slider 63 is connected to the sixth driving device 64 and can slide on the material support rods 74 under its drive. The second pressing mechanism 600 is mounted on the X-direction upper end of the slider 63.

[0031] During operation, one end of the unwound film strip is fed into the feeding mechanism 200 and passes between the two feeding rollers 21 and is initially flattened. The second drive device 31 can drive the material support roller 32 to an appropriate height to further stretch and flatten the strip and support it until the strip passes through the forming mechanism 500 and reaches the second pressing mechanism 600. The third driving device 41 and the fifth driving device 61 respectively drive the first pressure plate 42 and the second pressure plate 62 to press the material strip. At the same time, the first driving device 53 drives the flexible upper template 58 on the upper mold 51 to press the material strip against the diaphragm plate heated by the heating platform 54. The positive high pressure gas output by the air pump 55 presses the elastic plate on the flexible upper template 58 tightly against the diaphragm plate for hot pressing and forming. After completion, the water cooling pipe 57 cools the heating platform 54 and the diaphragm plate with supercooled water. The forming mechanism 500 returns to its position. After the diaphragm plate shrinks, it separates from the material strip on it. The first pressure plate 42 and the second pressure plate 62 loosen the two ends of the material strip. The unwinding mechanism continues to feed the material, pushing the material strip forward and causing the hot-pressed diaphragm sheet on it to flow to the material support platform 71. The first pressure plate 42 and the second pressure plate 62 press the material strip again. The forming mechanism 500 starts the next hot pressing and forming action. When the diaphragm sheet on the material strip is sent to the bottom of the cutter 72, the fourth driving device 73 drives the cutter 72 to cut it off from the material strip. The sixth drive device 64 can push the slider 63 to drive the second pressing mechanism 600 to slide along the X direction to an appropriate position, so as to press the material strip at the appropriate time, so that the cutting action can be carried out synchronously with the forming action, and realize continuous fully automatic production.

[0032] Example 2

[0033] Since the above embodiment can only form one diaphragm sheet in one molding operation, the molding efficiency is low and difficult to improve. This embodiment further improves upon this, referring to... Figure 5The flexible upper template 58 is set as a flexible silicone plate. During production, multiple layers of diaphragms can be stacked on the sound diaphragm plate manually or by a sheet feeding mechanism. The upper mold 51 drives the flexible silicone plate to press the multiple layers of diaphragms onto the sound diaphragm plate, thereby achieving the purpose of simultaneously forming multiple sound diaphragms and improving production efficiency.

[0034] This invention allows for switching between fully automatic continuous production and semi-automatic high-efficiency production of the sound membrane by simply replacing the flexible upper template 58. It also ensures the dimensional accuracy of the sound membrane. The equipment has a simple structure, low manufacturing cost, and is easy to assemble, meeting the production needs of different production modes and scales.

[0035] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A multi-functional automatic diaphragm forming machine for automatically forming diaphragms, comprising a frame (100), characterized in that, The frame (100) is provided with a feeding mechanism (200), a forming mechanism (500), and a cutting mechanism (700) sequentially along the X direction. The feeding mechanism (200) is used to feed the diaphragm strip to the forming mechanism (500), the forming mechanism (500) is used to heat-press the diaphragm strip to form a sound diaphragm, and the cutting mechanism (700) is used to cut the sound diaphragm strip from the diaphragm strip; wherein: The forming mechanism (500) includes an upper mold (51) and a lower mold (52). The upper mold (51) is connected to a first driving device (53) and can move toward the lower mold (52) under its drive. The lower mold (52) is provided with a heating plate (54) for supporting the sound diaphragm plate. The heating plate (54) is provided with a plurality of heating elements (56) arranged at equal intervals in the X direction and extending in the Y direction. Both ends of each heating element (56) extend to the outside of the heating plate (54) and are electrically connected to a temperature control element. A water cooling pipe (57) extending in the Y direction is provided between each pair of heating elements (56) on the heating plate (54). Both ends of each water cooling pipe (57) extend to the outside of the heating plate (54) and are connected to the water cooling pipe (4). The lower end of the upper mold (51) is provided with a flexible upper template (58) directly above the sound diaphragm plate. The projected area of ​​the flexible upper template (58) is larger than the projected area of ​​the sound diaphragm plate, and its outline edge falls outside the outline edge of the sound diaphragm plate. The flexible upper template (58) can deform under the action of external force to press the diaphragm strip onto the sound diaphragm plate.

2. The multi-functional automatic diaphragm forming machine according to claim 1, characterized in that, The flexible upper template (58) includes a cavity that is in communication with an air pump (55), and an elastic plate is provided at the end of the cavity facing the sound diaphragm plate.

3. The multi-functional automatic diaphragm forming machine according to claim 1, characterized in that, The flexible upper template (58) includes a flexible silicone plate disposed directly above the diaphragm plate.

4. The multi-functional automatic diaphragm forming machine according to claim 2 or 3, characterized in that, The first driving device (53) is a gas-liquid booster cylinder.

5. The multi-functional automatic diaphragm forming machine according to claim 4, characterized in that, The feeding mechanism (200) includes two feeding rollers (21) arranged in the Z direction and horizontally set and extended in the Y direction. Both feeding rollers (21) are horizontally mounted on the frame (100) and located on the X-direction side of the diaphragm plate.

6. The multi-functional automatic diaphragm forming machine according to claim 5, characterized in that, A material support mechanism (300) is also provided between the feeding mechanism (200) and the forming mechanism (500). The material support mechanism (300) includes a second driving device (31) and a material support roller (32) connected to it. The material support roller (32) is arranged parallel to the feeding roller (21) and can be translated along the Z direction under the drive of the second driving device (31) to support the diaphragm material strip between the feeding mechanism (200) and the diaphragm plate.

7. The multi-functional automatic diaphragm forming machine according to claim 6, characterized in that, A first pressing mechanism (400) is also provided between the material support mechanism (300) and the forming mechanism (500), including a third driving device (41) and a first pressure plate (42) that is connected to it and is horizontally arranged and extends in the Y direction. The first pressure plate (42) can move in the Z direction under the drive of the third driving device (41) to press the film strip against the frame (100).

8. The multi-functional automatic diaphragm forming machine according to claim 4, characterized in that, The cutting mechanism (700) includes a horizontally arranged material support platform (71) and a cutter (72) that is parallel to it and extends in the Y direction. The material support platform (71) is located on the X-direction side of the lower mold (52). The cutter (72) is connected to a fourth driving device (73) and can move in the Z direction under its drive to cut the film strip on the material support platform (71).

9. The multi-functional automatic diaphragm forming machine according to claim 8, characterized in that, A second pressing mechanism (600) is also provided between the forming mechanism (500) and the cutting mechanism (700), including a fifth driving device (61) and a second pressure plate (62) that is connected to it and is horizontally arranged and extends in the Y direction. The second pressure plate (62) can move in the Z direction under the drive of the fifth driving device (61) to press the film strip against the material support platform (71).

10. The multi-functional automatic diaphragm forming machine according to claim 9, characterized in that, The material support platform (71) includes two or more material support rods (74) mounted on the frame (100) and horizontally arranged and extending in the X direction. A slider (63) extending in the Y direction is mounted on a plurality of the material support rods (74). The slider (63) is connected to the sixth drive device (64) and can slide on the material support rods (74) under its drive. The second pressing mechanism (600) is mounted on the X-direction end of the slider (63).

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