Sound film forming blowing and discharging device

Abstract

The utility model relates to a sound film forming blowing unloading device, including the horizontal setting bottom plate and top plate, and the bottom plate and top plate are connected fixed through the vertical setting support rod, and the movable setting has the pressing plate between bottom plate and top plate, the bottom fixedly connected with upper die body of pressing plate, the bottom of upper die body is provided with the forming groove upwards, and the bottom plate below upper die body is provided with the lower die body with heating function correspondingly, and the top of lower die body is provided with the corresponding pressure block with forming groove upwards, the top of pressing plate is provided with the drive mechanism that makes the forming groove pressure joint in pressure block to drive pressing plate vertical lift, and the drive mechanism is set up by the blowing mechanism that comprises the gas distribution ring, the air equalizing chamber and the inclined gas outlet, can produce the even upward demolding force after the sound film hot press forming, and the sound film is separated from the die body, avoids the mechanical damage of uneven force application to the weak edge of sound film when stripping artificially, effectively improves production efficiency and product consistency.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm forming technology, and in particular to a diaphragm forming air blowing and feeding device. Background Technology

[0002] The diaphragm, also known as the "paper cone," is the core vibrating component of a loudspeaker, responsible for converting electrical signals into sound signals. When an electrical signal is input to the loudspeaker, the diaphragm vibrates through electromagnetic, piezoelectric, or electrostatic effects, thereby reproducing audio.

[0003] In existing production processes, the diaphragm tends to adhere to the mold surface after hot pressing. Currently, manual peeling is commonly used for demolding, which is not only inefficient but also prone to damage to the weak edges of the molded diaphragm due to uneven force application, resulting in problems such as creases or tears in the product, affecting the product qualification rate and production consistency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sound diaphragm forming air blowing and feeding device to address the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A diaphragm forming and blowing feeding device, characterized in that: It includes a horizontally arranged base plate and a top plate, which are connected and fixed by a vertically arranged support rod. A pressure plate is movably arranged between the base plate and the top plate. An upper mold body is fixedly connected to the bottom of the pressure plate. A forming groove is opened on the bottom of the upper mold body. A lower mold body with a heating function is correspondingly arranged on the base plate below the upper mold body. A pressing block corresponding to the forming groove is provided on the top of the lower mold body. A driving mechanism is provided on the top of the pressure plate to drive the pressure plate to move vertically up and down so that the forming groove presses against the pressing block. A positioning plate for placing the sound diaphragm to be formed is provided between the pressure plate and the lower mold body. A clearance groove is provided in the middle of the positioning plate for the upper mold body to descend and pass through. A film support frame for supporting the sound diaphragm to be formed is fixed on the inner edge of the clearance groove. The base plate is provided with an air blowing mechanism for assisting the sound diaphragm to detach upward from the lower mold body after heating and molding. The air blowing mechanism includes an air distribution ring fixedly installed on the outer peripheral side of the base plate of the lower mold body. The air distribution ring has an annular air equalization chamber inside, and an air inlet communicating with the air equalization chamber is provided on the outer side of the air distribution ring. Multiple air outlets communicating with the air equalization chamber are evenly distributed along the circumference of the top of the air distribution ring. The axis of each air outlet is inclined towards the central axis of the lower mold body.

[0006] The technical problem to be solved by this utility model can be further achieved through the following steps: the bottom surface of the pressure plate is fixedly provided with an installation ring, the upper mold body is inserted upward into the installation ring and threadedly connected to the installation ring, and a buffer washer is provided between the end face of the installation ring and the upper mold body.

[0007] The technical problem to be solved by this utility model can be further achieved through the following steps: a heating platform is fixedly provided on the base plate, a heating groove is provided on the top surface of the heating platform facing downwards, and multiple heating rods are provided at the lower part of the heating groove; the lower mold body is inserted downwards into the heating groove and threadedly connected to the heating groove.

[0008] The technical problem to be solved by this utility model can be further achieved through the following steps: the clearance groove is a rectangular groove, and the film support frame includes L-shaped plates disposed at the four corners of the clearance groove.

[0009] The technical problem to be solved by this utility model can be further achieved through the following steps: there are four support rods, all of which are screw rods, and a lifting block is sleeved on every two support rods. The positioning plate is set between the two lifting blocks, and an adjusting nut for adjusting the height of the positioning plate is provided on each support rod.

[0010] The technical problem to be solved by this utility model can be further achieved through the following steps: the positioning plate is slidably disposed between two lifting blocks, and a handle for easy pulling is provided on one side of the positioning plate.

[0011] The technical problem to be solved by this utility model can be further achieved through the following steps: the driving mechanism includes a lifting cylinder fixedly installed on the top plate, the power output end of the lifting cylinder passes downward through the corresponding through hole opened in the top plate, and is fixedly connected to the pressure plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by setting up an air blowing mechanism consisting of an air distribution ring, an air equalization chamber and an inclined air outlet, a uniform upward demolding force can be automatically generated after the sound diaphragm is hot-pressed and formed, which helps the sound diaphragm to detach from the mold body, avoids mechanical damage to the weak edges of the sound diaphragm caused by uneven force during manual peeling, and effectively improves production efficiency and product consistency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the lower mold body and the air blowing mechanism; Figure 5 for Figure 1 Top sectional view; Detailed Implementation

[0014] The specific technical solutions of this utility model are further described below to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limiting the utility model. An upward-facing pressing block corresponding to the forming groove is provided, and the top of the pressing plate is provided with a drive plate to vertically lift and lower for forming.

[0016] Please refer to Figure 1-4 A diaphragm forming blowing and feeding device includes a horizontally arranged base plate 1 and a top plate 2. The top plate 2 is arranged above the base plate 1 on one side. The base plate 1 and the top plate 2 are connected and fixed by a vertically arranged support rod 3. A pressure plate 4 is movably arranged between the base plate 1 and the top plate 2. An upper mold body 5 is fixedly connected to the bottom of the pressure plate 4. A forming groove 6 is opened upward at the bottom of the upper mold body 5. A lower mold body 7 with heating function is correspondingly arranged on the base plate 1 below the upper mold body 5. A pressing block 8 corresponding to the forming groove 6 is integrally formed upward at the top of the lower mold body 7. A driving mechanism is provided on the top of the pressure plate 4 to drive the pressure plate 4 to rise and fall vertically so that the forming groove 6 is pressed against the pressing block 8. A positioning plate 9 for placing the diaphragm to be formed is provided between the pressure plate 4 and the lower mold body 7. A clearance groove 10 is provided in the middle of the positioning plate 9 for the upper mold body 5 to descend and pass through. A film support frame 11 for supporting the diaphragm to be formed is fixed on the inner edge of the clearance groove 10. In use, the heating function of the lower mold body 7 is first turned on, and then the diaphragm material plate is snapped onto the positioning plate 9. The upper mold body 5 is driven to descend by the drive mechanism, pressing the middle area of ​​the diaphragm material plate between the pressure block 8 and the forming groove 6. The pressure is heated and held for a certain period of time to heat and form the diaphragm.

[0017] The base plate 1 is equipped with an air blowing mechanism to assist the diaphragm in detaching upwards from the lower mold body 7 after heating and molding. The air blowing mechanism includes an air distribution ring 12 fixedly mounted on the base plate 1 on the outer periphery of the lower mold body 7. The air distribution ring 12 has an annular air equalization chamber 13 inside, and an air inlet 14 communicating with the air equalization chamber 13 on the outer side of the air distribution ring 12. Multiple air outlets 15 communicating with the air equalization chamber 13 are evenly distributed circumferentially on the top of the air distribution ring 12, with the axis of each air outlet 15 inclined towards the central axis of the lower mold body 7. Thus, after the diaphragm is molded, compressed gas is introduced into the air equalization chamber 13 through the air inlet 14. The gas is ejected through the multiple inclined air outlets 15, forming a converging airflow towards the central axis. This airflow acts on the bottom edge of the molded diaphragm, generating a uniform upward demolding force, assisting the diaphragm in smoothly detaching from the lower mold body 7, avoiding deformation or damage caused by manual prying. Both the upper mold body 5 and the lower mold body 7 are made of mold steel, possessing good wear resistance and thermal conductivity.

[0018] The bottom surface of the pressure plate 4 is fixedly provided with a mounting ring 16. The upper mold body 5 is inserted upward into the mounting ring 16 and threadedly connected to the mounting ring 16. A buffer washer 17 is provided between the end face of the mounting ring 16 and the upper mold body 5. Thus, different processing requirements can be adapted by replacing the upper mold body 5 with one of different size.

[0019] A heating platform 18 is fixedly mounted on the base plate 1. A heating groove is formed on the top surface of the heating platform 18, and multiple heating rods 19 are arranged at the bottom of the heating groove. The lower mold body 7 is inserted downward into the heating groove and threadedly connected to the heating groove. Thus, different processing requirements can be adapted by replacing the lower mold body 7 with different sizes. At the same time, the heating rods 19 conduct heat evenly to the lower mold body 7 through the wall of the heating groove, ensuring a stable molding temperature.

[0020] The clearance groove 10 is a rectangular groove, and the membrane support frame 11 includes L-shaped plates disposed at the four corners of the clearance groove 10. The size of the rectangular groove corresponds to the size of the diaphragm material after slitting; thus, the four corners of the diaphragm material can be placed on the L-shaped plates for quick positioning.

[0021] There are four support rods 3, all of which are screws. A lifting block 20 is fitted on every two support rods 3. The positioning plate 9 is positioned between two lifting blocks 20. Each support rod 3 is equipped with an adjusting nut 21 for adjusting the height of the positioning plate 9. Thus, the height of the lifting block 20 can be adjusted by turning the adjusting nut 21, thereby adjusting the height of the positioning plate 9.

[0022] The positioning plate 9 is slidably disposed between the two lifting blocks 20, and a handle 22 is provided on one side of the positioning plate 9 for easy pulling. Thus, by pulling out the positioning plate 9 through the handle 22, the sound diaphragm material plate can be placed without interference from the upper mold body 5, which is convenient for use.

[0023] The drive mechanism includes a lifting cylinder 23 fixedly installed on the top plate 2. The power output end of the lifting cylinder 23 passes downward through a corresponding through hole in the top plate 2 and is fixedly connected to the pressure plate 4.

[0024] In use, first select and install the corresponding upper mold body 5 and lower mold body 7 according to the size and specifications of the diaphragm to be processed. Then, adjust the height of the positioning plate 9 to 5-10mm above the top surface of the lower mold body 7 and connect it to the external air source. Next, turn on the heating function of the lower mold body 7 and wait for it to heat up to the set value. Then, use the handle 22 to pull the positioning plate 9 outward from between the lifting blocks 20, place the cut diaphragm material plate on the film support frame 11, and after ensuring that the four corners are stably positioned, push the positioning plate 9 back to the working position. Then, start the lifting cylinder 23 to drive the pressure plate 4 and the upper mold body 5 to descend. At this time, the edge of the diaphragm material plate overlaps with the positioning plate 9, and the middle area of ​​the diaphragm material plate is pressed between the forming groove 6 of the upper mold body 5 and the pressing block 8 of the lower mold body 7 for hot pressing molding. After the pressure holding is completed, the lifting cylinder 23 drives the upper mold body 5 to rise. At this time, the external air source is turned on, and compressed air enters the air distribution chamber 13 from the air inlet 14. After being evenly distributed, it forms an upward airflow from each air outlet 15, which helps the formed sound diaphragm to detach from the lower mold body 7. At this time, the operator can pinch the opposite edge of the sound diaphragm material plate to lift it up and down without manual peeling.

[0025] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A diaphragm forming and blowing feeding device, characterized in that: It includes a horizontally arranged base plate and a top plate, which are connected and fixed by a vertically arranged support rod. A pressure plate is movably arranged between the base plate and the top plate. An upper mold body is fixedly connected to the bottom of the pressure plate. A forming groove is opened on the bottom of the upper mold body. A lower mold body with a heating function is correspondingly arranged on the base plate below the upper mold body. A pressing block corresponding to the forming groove is provided on the top of the lower mold body. A driving mechanism is provided on the top of the pressure plate to drive the pressure plate to move vertically up and down so that the forming groove presses against the pressing block. A positioning plate for placing the sound diaphragm to be formed is provided between the pressure plate and the lower mold body. A clearance groove is provided in the middle of the positioning plate for the upper mold body to descend and pass through. A film support frame for supporting the sound diaphragm to be formed is fixed on the inner edge of the clearance groove. The base plate is provided with an air blowing mechanism for assisting the sound diaphragm to detach upward from the lower mold body after heating and molding. The air blowing mechanism includes an air distribution ring fixedly installed on the outer peripheral side of the base plate of the lower mold body. The air distribution ring has an annular air equalization chamber inside, and an air inlet communicating with the air equalization chamber is provided on the outer side of the air distribution ring. Multiple air outlets communicating with the air equalization chamber are evenly distributed along the circumference of the top of the air distribution ring. The axis of each air outlet is inclined towards the central axis of the lower mold body.

2. The diaphragm forming and blowing device according to claim 1, characterized in that: The bottom surface of the pressure plate is fixedly provided with an installation ring, the upper mold body is inserted upward into the installation ring and threadedly connected to the installation ring, and a buffer washer is provided between the end face of the installation ring and the upper mold body.

3. The diaphragm forming and blowing device according to claim 1, characterized in that: A heating platform is fixedly provided on the base plate. A heating groove is opened on the top surface of the heating platform facing downwards. Multiple heating rods are provided at the bottom of the heating groove. The lower mold body is inserted downwards into the heating groove and is threadedly connected to the heating groove.

4. The diaphragm forming air blowing and feeding device according to claim 1, characterized in that: The clearance groove is a rectangular groove, and the film support frame includes L-shaped plates disposed at the four corners of the clearance groove.

5. The diaphragm forming and blowing feeding device according to claim 1, characterized in that: There are four support rods, all of which are screw rods. A lifting block is fitted on every two support rods. The positioning plate is set between two lifting blocks. Each support rod is equipped with an adjusting nut for adjusting the height of the positioning plate.

6. The diaphragm forming air blowing and feeding device according to claim 5, characterized in that: The positioning plate is slidably disposed between the two lifting blocks, and a handle for easy pulling is provided on one side of the positioning plate.

7. The diaphragm forming air blowing and feeding device according to claim 1, characterized in that: The drive mechanism includes a lifting cylinder fixedly mounted on the top plate. The power output end of the lifting cylinder passes downward through a corresponding through hole in the top plate and is fixedly connected to the pressure plate.

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