Vulcanizing mold

Abstract

The utility model belongs to the technical field of rubber vulcanization, and particularly discloses a vulcanization mold which comprises a lower mold, the limiting assembly is used for limiting the position of the acoustic device, is located at the top of the lower die and is fixedly connected with the lower die; the adapter plate is used for connecting an acoustic device; the fixing plate is located at the top of the adapter plate, and a lifting assembly is arranged between the fixing plate and the adapter plate; a plurality of positioning holes are formed in the edges of the lower die, the limiting assembly and the fixing plate, guide columns are arranged in at least three positioning holes and sequentially penetrate through the lower die, the limiting assembly and the fixing plate, and the two ends of each guide column are fixedly connected with the positioning holes of the lower die and the fixing plate respectively. According to the utility model, the lower die is arranged and is connected with the limiting assembly and the fixing plate through the guide columns, so that the axes of the lower die, the limiting assembly and the fixing plate are overlapped, and the concentricity of the acoustic device and vulcanized rubber and the appearance quality of the vulcanized rubber are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rubber vulcanization technical field, especially related to a vulcanization mould. BACKGROUND

[0002] The acoustic device works underwater by converting the energy of the transducer into kinetic energy and then into acoustic energy. However, in order to protect it from physical damage and seawater erosion in the complex underwater environment, a kind of rubber with good sound transmission performance needs to be coated on its surface before being put into water for application to prevent the acoustic device from being damaged underwater.

[0003] In the design and application of acoustic devices, in order to realize the functions of waterproofing and sound transmission, a sound transmission rubber needs to be coated on the front end of the acoustic device array surface. As a key water-tight and sound transmission material, the performance of the sound transmission rubber directly affects the transmission efficiency of sound waves and the overall performance of the transducer. The coating of the sound transmission rubber can be realized through the vulcanization process. The molding of the rubber is very critical in the vulcanization process. The smoothness of the vulcanization molding and the concentricity of the rubber layer and the acoustic device will greatly increase the underwater noise of the acoustic device, thereby affecting its comprehensive performance such as target detection, positioning and identification. Therefore, it is crucial for the design and efficient and high-quality manufacturing of acoustic devices to optimize the vulcanization process and the special mold design to ensure that the surface of the vulcanized rubber is smooth, concentric and tightly coated with the acoustic device. The existing acoustic device vulcanization process is complex and difficult to operate, and there is a lack of special vulcanization mold for acoustic devices. When vulcanizing the acoustic device, the prepared sound transmission rubber is slowly poured onto the surface of the acoustic device, and then the pre-vulcanized acoustic device is placed in an oven for baking. There are problems such as the non-concentricity of the rubber and the acoustic device and the non-smoothness of the rubber surface. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects in the prior art and provides a vulcanization mold.

[0005] The utility model provides a vulcanization mold for coating sound transmission rubber on the surface of an acoustic device, comprising:

[0006] A lower mold, which is a circular truncated cone structure with a hollow interior and an open top;

[0007] A limiting assembly for limiting the position of the acoustic device, which is located at the top of the lower mold and fixedly connected with the lower mold;

[0008] An adapter plate located at the top of the limiting assembly for connecting the acoustic device;

[0009] A fixed plate located at the top of the adapter plate, and a lifting assembly is arranged between the fixed plate and the adapter plate, which is used to drive the adapter plate to rise or fall;

[0010] The lower mold, the limiting assembly and the edge of the fixed plate are provided with a plurality of positioning holes, a guide column is arranged in at least three positioning holes, the guide column penetrates the lower mold, the limiting assembly and the fixed plate in sequence, and the two ends of the guide column are fixedly connected with the positioning holes of the lower mold and the fixed plate respectively.

[0011] Further, a positioning ring is arranged on the top outer side of the lower mold, a plurality of connecting grooves are uniformly arranged on the positioning ring in the circumferential direction, a fixing pin is arranged in the connecting groove, one end of the fixing pin is connected with the positioning ring, and the other end of the fixing pin is connected with the top of the lower mold.

[0012] The positioning hole of the lower mold is arranged on the positioning ring.

[0013] Further, the limiting assembly comprises a first limiting ring and a second limiting ring.

[0014] The edge of the first limiting ring is provided with a plurality of positioning holes in the circumferential direction, and an annular receiving table is arranged in the first limiting ring.

[0015] The positioning ring is provided with a connecting block, the first limiting ring is connected with the connecting block through a first bolt, and the second limiting ring and the receiving table are connected through a second bolt.

[0016] Further, the top of the positioning ring is higher than the top of the lower mold, a recessed area is formed on the top of the lower mold, a convex ring is arranged on the bottom of the first limiting ring, and the convex ring is clamped in the recessed area.

[0017] Further, the second limiting ring is formed by splicing two semicircular rings, an installation plate is arranged in the semicircular ring, the installation plate is a semicircular structure, and the semicircular structure and the circle where the semicircular ring is located are concentric circles.

[0018] The side wall of the installation plate is covered with a rubber pad, and the rubber pad is fixedly connected with the installation plate.

[0019] Further, a through hole is arranged in the center of the fixed plate.

[0020] The lifting assembly comprises a threaded disc and a screw rod, the threaded disc is arranged in the through hole and is fixedly connected with the through hole, and the screw rod penetrates the threaded disc.

[0021] A bearing is arranged at the top center of the adapter plate, the outer ring of the bearing is connected with the adapter plate, the inner ring of the bearing is interference-fitted with the bottom of the screw rod, and the bottom of the adapter plate is used for clamping the acoustic device.

[0022] Further, a guide rod is arranged between the fixed plate and the adapter plate, the bottom of the guide rod is fixedly connected with the adapter plate, and the top of the guide rod penetrates through the fixed plate and is in sliding connection with the fixed plate.

[0023] Further, a twist stub is arranged at the top of the screw rod, and a wrench is arranged outside the twist stub.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] The lower mold, the limiting assembly and the fixed plate are coaxial, the prepared sound-transmitting rubber is poured into the lower mold during vulcanization, the adapter plate is driven by the lifting assembly to drive the acoustic device to descend until the acoustic device is immersed in the sound-transmitting rubber to complete the vulcanization, the concentricity of the acoustic device and the vulcanized rubber and the appearance quality of the rubber after vulcanization are greatly improved through the mold design, the unqualified conditions such as the eccentricity of the rubber vulcanization layer and the acoustic device, the rough appearance surface of the vulcanization layer and the bubbles are effectively avoided, and the vulcanization yield of the acoustic device is greatly improved.

[0026] The first limiting ring and the second limiting ring are arranged at the top of the lower mold, and the second limiting ring is in clamping connection with the outer surface of the acoustic device during the descent of the acoustic device, thereby limiting the descent of the acoustic device. BRIEF DESCRIPTION OF DRAWINGS

[0027] The following drawings only schematically illustrate and explain the present application and are not used to limit the scope of the present application, in which:

[0028] Figure 1 The present application is a structure explosion schematic view.

[0029] Figure 2 The present application is a lower mold structure schematic view.

[0030] Figure 3 The present application is a second limiting ring structure schematic view.

[0031] Figure 4 The present application is a second limiting ring and a first limiting ring assembly schematic view.

[0032] In the figure: 1. Lower mold; 2. Positioning ring; 3. Fixing pin; 4. Connecting block; 5. First limiting ring; 6. First bolt; 7. Supporting platform; 8. Positioning hole; 9. Second limiting ring; 10. Second bolt; 11. Fixing plate; 12. Adapter plate; 13. Guide rod; 14. Bearing; 15. Threaded disk; 16. Screw; 17. Twisting short column; 18. Wrench; 19. Guide column; 20. Mounting plate; 21. Rubber pad; 22. Recessed area; 23. Convex ring. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution, design method and advantages of the present invention more clear, the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0034] like Figure 1 As shown, the utility model provides a vulcanization mold for coating the surface of an acoustic device with sound-transmitting rubber, comprising:

[0035] The lower mold 1 is a truncated cone structure with a hollow interior and an open top. Figure 2 As shown, a positioning ring 2 is provided on the outer side of the top of the lower mold 1. A plurality of connecting grooves are evenly opened on the positioning ring 2 along the circumference. A fixing pin 3 is provided inside the connecting groove. One end of the fixing pin 3 is connected to the positioning ring 2, and the other end of the fixing pin 3 is connected to the top of the lower mold 1. A plurality of positioning holes 8 are provided along the circumference of the edge of the positioning ring 2.

[0036] A limiting assembly is used to limit the position of the acoustic device. The limiting assembly is located at the top of the lower mold 1 and is fixedly connected to the lower mold 1. The limiting assembly includes a first limiting ring 5 and a second limiting ring 9. The edge of the first limiting ring 5 is provided with a plurality of positioning holes 8 along the circumferential direction. The first limiting ring 5 is provided with an annular receiving platform 7 inside, and the receiving platform 7 is integrally formed with the first limiting ring 5. A connecting block 4 is provided on the positioning ring 2, and the first limiting ring 5 is connected to the connecting block 4 by a first bolt 6. The second limiting ring 9 is connected to the receiving platform 7 by a second bolt 10. The second limiting ring 9 is formed by splicing two semicircular rings. A mounting plate 20 is provided inside the semicircular ring. The mounting plate 20 is a semicircular structure and the circle where the semicircular structure and the semicircular ring are located are concentric circles. The side wall of the mounting plate 20 is covered with a rubber pad 21, and the rubber pad 21 is fixedly connected to the mounting plate 20. By providing the rubber pad 21 , damage to the acoustic device during the descent process can be effectively avoided, and the width of the rubber pad 21 can be adjusted to accommodate acoustic devices of different specifications.

[0037] The adapter plate 12 is located on the top of the limiting assembly and is used to connect the acoustic device. In this embodiment, the acoustic device is a cylindrical structure, and the top diameter of the acoustic device is larger than the bottom diameter. During the lowering process, the side wall of the acoustic device is clamped with the second limiting ring 9 to rubberize the position below the second limiting ring 9. The bottom of the adapter plate 12 is clamped with the top of the acoustic device. The clamping method can be selected according to the specific structure of the top of the acoustic device, and it is a conventional clamping method, which is not limited here.

[0038] The fixing plate 11 is located on the top of the adapter plate 12, and a lifting assembly is arranged between the fixing plate 11 and the adapter plate 12. The lifting assembly is used to drive the adapter plate 12 to rise or fall. A through hole is formed in the center of the fixing plate 11. The lifting assembly includes a threaded disc 15 and a screw rod 16. The threaded disc 15 is arranged inside the through hole and is fixedly connected with the through hole. The screw rod 16 penetrates the threaded disc 15. A bearing 14 is arranged at the top center of the adapter plate 12. The outer ring of the bearing 14 is connected with the adapter plate 12, and the inner ring of the bearing 14 is interference-fitted with the bottom of the screw rod 16. The bottom of the adapter plate 12 is used to clamp the acoustic device. In this embodiment, a guide rod 13 is further arranged between the fixing plate 11 and the adapter plate 12. The bottom of the guide rod 13 is fixedly connected with the adapter plate 12, and the top of the guide rod 13 penetrates the fixing plate 11 and is slidingly connected with the fixing plate 11. During the rising process of the adapter plate 12, the guide rod 13 also rises, and at this time, the guide rod 13 slides upward relative to the fixing plate 11. A plurality of positioning holes 8 are formed in the edge of the fixing plate 11. A guide column 19 is arranged in three positioning holes 8. The guide column 19 penetrates the positioning ring 2, the first limiting ring 5, and the fixing plate 11 in sequence, and the two ends of the guide column 19 are fixedly connected with the positioning ring 2 and the positioning hole 8 of the fixing plate 11, respectively.

[0039] In this embodiment, the top of the positioning ring 2 is higher than the top of the lower mold 1. A recessed area 22 is formed at the top of the lower mold 1. The bottom of the first limiting ring 5 is provided with a convex ring 23, and the convex ring 23 is clamped inside the recessed area 22. In order to facilitate the rotation of the screw rod 16, a twisting short column 17 is further arranged at the top of the screw rod 16 in this embodiment, and a wrench 18 is sleeved outside the twisting short column 17. By rotating the wrench 18 to drive the screw rod 16 to rotate, the adapter plate 12 is lifted or lowered, and the position adjustment of the acoustic device is completed. It should be noted that when the acoustic device rises, a gap is generated between the acoustic device and the lower mold, which can be used to pour the sound-transmitting rubber into the lower mold 1. When the acoustic device is lowered, a rubber pad 21 with a suitable width is selected according to the specification of the acoustic device. When the side wall of the acoustic device abuts against the rubber pad 21, the lowering is stopped.

[0040] The above has described various embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements in the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A vulcanization mold for coating a sound-transmissive rubber on a surface of an acoustic device, characterized by, include: A lower mold (1), wherein the lower mold (1) is a truncated cone structure with a hollow interior and an open top; A limiting assembly, used for limiting the position of the acoustic device, wherein the limiting assembly is located on the top of the lower mold (1) and is fixedly connected to the lower mold (1); an adapter plate (12), located on top of the limiting assembly and used for connecting the acoustic device; A fixed plate (11) is located on top of the adapter plate (12), and a lifting assembly is provided between the fixed plate (11) and the adapter plate (12), and the lifting assembly is used to drive the adapter plate (12) to rise or fall; The edges of the lower mold (1), the limiting assembly, and the fixed plate (11) are each provided with a plurality of positioning holes (8), and guide columns (19) are provided in at least three of the positioning holes (8). The guide columns (19) sequentially penetrate the lower mold (1), the limiting assembly, and the fixed plate (11), and the two ends of the guide columns (19) are respectively fixedly connected to the positioning holes (8) of the lower mold (1) and the fixed plate (11).

2. A vulcanization mold according to claim 1, characterized in that A positioning ring (2) is provided on the outer side of the top of the lower mold (1), and a plurality of connecting grooves are evenly opened on the positioning ring (2) along the circumference. A fixing pin (3) is provided inside the connecting groove, and one end of the fixing pin (3) is connected to the positioning ring (2), and the other end of the fixing pin (3) is connected to the top of the lower mold (1); The positioning hole (8) of the lower die (1) is provided on the positioning ring (2).

3. A vulcanization mold according to claim 2, wherein The limiting assembly comprises a first limiting ring (5) and a second limiting ring (9); The edge of the first limiting ring (5) is provided with a plurality of positioning holes (8) along the circumferential direction, and an annular receiving platform (7) is provided inside the first limiting ring (5), and the receiving platform (7) and the first limiting ring (5) are integrally formed; A connecting block (4) is provided on the positioning ring (2); the first limiting ring (5) is connected to the connecting block (4) via a first bolt (6); and the second limiting ring (9) is connected to the receiving platform (7) via a second bolt (10).

4. A vulcanization mold according to claim 3, wherein The top of the positioning ring (2) is higher than the top of the lower mold (1), and a recessed area (22) is formed on the top of the lower mold (1). A convex ring (23) is provided at the bottom of the first limiting ring (5), and the convex ring (23) is clamped inside the recessed area (22).

5. A vulcanization mold according to claim 4, wherein The second limiting ring (9) is formed by splicing two semicircular rings; a mounting plate (20) is provided inside the semicircular ring, the mounting plate (20) is a semicircular structure, and the semicircular structure and the circle where the semicircular ring is located are concentric circles; The side wall of the mounting plate (20) is covered with a rubber pad (21), and the rubber pad (21) is fixedly connected to the mounting plate (20).

6. A vulcanization mold according to claim 5, wherein A through hole is provided at the center of the fixing plate (11); The lifting assembly comprises a threaded disc (15) and a screw (16), wherein the threaded disc (15) is arranged inside the through hole and fixedly connected to the through hole, and the screw (16) passes through the threaded disc (15); The adapter plate (12) is provided with a bearing (14) in the top center, the outer ring of the bearing (14) is connected with the adapter plate (12), the inner ring of the bearing (14) is interference fit with the bottom of the screw rod (16); the bottom of the adapter plate (12) is used for clamping the acoustic device.

7. A vulcanization mold according to claim 6, wherein A guide rod (13) is further arranged between the fixed plate (11) and the adapter plate (12), the bottom of the guide rod (13) is fixedly connected with the adapter plate (12), the top of the guide rod (13) penetrates through the fixed plate (11) and is slidably connected with the fixed plate (11).

8. A vulcanization mold according to claim 7, wherein The screw rod (16) is provided with a twisting stub (17) in the top, a wrench (18) is sleeved outside the twisting stub (17).

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