Sound box shell injection mold

Abstract

The invention relates to the technical field of injection molds, in particular to a loudspeaker box shell injection mold which comprises an upper sealing plate and a female mold plate, the female mold plate is arranged at the bottom of the upper sealing plate, a first mold core is arranged on the inner side of the female mold plate, a second mold core is arranged on the inner side of the female mold plate, and a male mold system is fixedly connected to the bottom of the female mold plate through bolts. The bottom of the male mold system is fixedly connected with mold feet through bolts, the inner sides of the mold feet are slidably connected with an ejector plate, the bottom of the ejector plate is provided with a lower fixing plate, the male mold system comprises a male mold plate, the inner side of the male mold plate is fixedly connected with a cooling water way in a penetrating mode, a side pressing assembly is installed on the inner side of the male mold plate, and a hydraulic pressing assembly is installed on the inner side of the male mold plate; according to the device, during injection molding production, different pressing modes are adopted for injection molds of the front part and the rear part of a sound box shell, it is guaranteed that each mold cavity can obtain proper pressing force, and meanwhile injection molding of the two mold cavities is completed.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold for a speaker shell. Background Art

[0002] Injection molds play a vital role in modern industrial production. The cavity and core inside the mold are designed according to the shape and size of the required product. When the molten raw material is injected into the mold, it fills the mold cavity and solidifies into a product with the same shape as the mold cavity after cooling. The products produced by injection molds are consistent and stable, and of good quality, so they are widely used in various production fields.

[0003] When the injection mold is being injected, the products are divided and injected, which can more accurately control the use of materials, shorten the injection cycle, and make it easier for the products to be removed from the mold after cooling and solidification;

[0004] When the injection mold adopts split injection molding to produce the speaker shell, due to the different pressing requirements of different areas of the speaker shell, the differentiated pressing of different areas of the mold is not precise enough, which will lead to insufficient strength of the product in some areas, deformation, cracks and other defects, affecting the performance of the product. Therefore, a speaker shell injection mold is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an injection mold for a speaker housing.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A speaker shell injection mold comprises an upper sealing plate and a mother mold plate, wherein the mother mold plate is arranged at the lower end of the upper sealing plate, a first mold core is arranged on the inner side of the mother mold plate, a second mold core is arranged on the inner side of the mother mold plate, the lower end of the mother mold plate is fixedly connected to a male mold system by bolts, the lower end of the male mold system is fixedly connected to a mold foot by bolts, an ejection plate is slidably connected to the inner side of the mold foot, a lower fixed plate is arranged at the lower end of the ejection plate, the male mold system comprises a male mold plate, a cooling water channel is fixedly connected to the inner side of the male mold plate, a side clamping assembly is installed on the inner side of the male mold plate, a hydraulic clamping assembly is installed on the inner side of the male mold plate, and an electric clamping assembly is arranged on the inner side of the male mold plate.

[0008] As a further optimization of the present invention, the inner side of the mother template is in contact with the outer side of the first mold core, the inner side of the mother template is in contact with the outer side of the second mold core, and the top surface of the first mold core and the top surface of the second mold core are in the same horizontal plane.

[0009] As further optimization content of the present invention, the outer side of the cooling water channel is in contact with the inner side of the first mold core, two hydraulic clamping assemblies are provided, and the two hydraulic clamping assemblies are symmetrically distributed, and two electric clamping assemblies are provided, and the two electric clamping assemblies are symmetrically distributed.

[0010] As further optimized content of the present invention, the side clamping assembly includes a side fixing seat, a side servo motor is fixedly connected to the inner side of the side fixing seat by bolts, a square head hydraulic rod is fixedly connected to the outer side of the main shaft of the side servo motor, a positioning block is slidably connected to the outer side of the square head hydraulic rod, an inter-block slide groove is opened on the inner side of the positioning block, and a side pressure block is installed on one side of the positioning block.

[0011] As a further optimization of the present invention, the central axis of the side servo motor and the central axis of the square head hydraulic rod are on the same straight line, the outer side of the square head hydraulic rod fits with the inner side of the slide groove between the blocks, and the angle between the square head hydraulic rod and the side pressure block is 90°.

[0012] As further optimized content of the present invention, the hydraulic clamping assembly includes a hydraulic motor, an oil pipe is installed on the upper end of the hydraulic motor, a rod head is fixedly connected to the outer side of the hydraulic motor main shaft, a locking seat is installed on one side of the hydraulic motor, an electric control lock is installed on the upper end of the locking seat, a locking clamping block is arranged on the inner side of the locking seat, a locking groove is opened on the inner side of the locking clamping block, and a limiting rod is installed on the inner side of the locking clamping block.

[0013] As further optimization of the present invention, the angle between the oil pipe and the hydraulic motor is 90°, the oil pipe is set in a "U" shape, the rod head and the hydraulic motor have the same axis, two electric control locks are provided, and the two electric control locks are centrally symmetrically distributed at the upper end of the locking seat.

[0014] As a further optimization of the present invention, a rod head is slidably connected to the inner side of the locking groove, the angle between the rod head and the locking clamping block is 90°, and the outer side of the limit rod is in contact with the outer side of the electric control lock.

[0015] As further optimized content of the present utility model, the electric clamping assembly includes an AC servo motor, a sliding rod is fixedly connected to the lower end of the main shaft of the AC servo motor, an inner clamping block is installed on the outer side of the sliding rod, an oblique pressing block is slidably connected to the inner side of the inner clamping block, a limited position fixing seat is installed on the outer side of the inner clamping block, a moving block is installed on one side of the limited position fixing seat, a push rod is fixedly connected to the inner side of the moving block by bolts, and an arc groove is arranged at one end of the push rod.

[0016] As further optimization content of the present invention, the AC servo motor and the sliding rod have the same axis, the angle between the sliding rod and the inner clamping block is 90°, the outer side of the inner clamping block is in contact with the inner side of the limit fixing seat, the bottom end surface of the limit fixing seat and the bottom end surface of the moving block are on the same horizontal plane, two push rods are provided, and the two push rods are symmetrically distributed on the inner side of the moving block, and the number of the arc grooves corresponds to the number of push rods.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] In the present invention, by setting up the side clamping assembly, the hydraulic clamping assembly and the electric clamping assembly, the device adopts different clamping methods for the injection molds of the front and rear parts of the audio shell during injection molding production, while ensuring that each mold cavity can obtain appropriate clamping force. At the same time, the injection molding of the two mold cavities is completed, which not only shortens the production time, but also reduces the potential errors caused by multiple operations, reduces the production cost, and further ensures the consistency of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of an injection mold for a speaker housing of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall exploded structure of a speaker housing injection mold of the present invention;

[0022] Figure 3 It is a schematic diagram of the exploded structure of the male mold system of a speaker housing injection mold of the present invention;

[0023] Figure 4 It is a schematic structural diagram of a side clamping component of a speaker housing injection mold of the present invention;

[0024] Figure 5 It is a schematic diagram of the exploded structure of a side clamping component of a speaker housing injection mold of the present invention;

[0025] Figure 6 This is a schematic structural diagram of a hydraulic pressing component of a speaker housing injection mold of the present invention;

[0026] Figure 7 This is a schematic diagram of the exploded structure of a hydraulic pressing component of a speaker housing injection mold of the present invention;

[0027] Figure 8 This is a schematic structural diagram of an electric pressing component of a speaker housing injection mold of the present invention;

[0028] Fig. 9 The present invention is a schematic diagram of the exploded structure of an electric pressing component of a speaker housing injection mold.

[0029] In the figure: 1, upper sealing plate; 2, female mold plate; 3, first mold core; 4, second mold core; 5, male mold system; 51, male mold plate; 52, cooling water channel; 53, side clamping assembly; 531, side fixing seat; 532, side servo motor; 533, square head hydraulic rod; 534, positioning block; 535, inter-block slideway; 536, side pressure block; 54, hydraulic clamping assembly; 541, hydraulic motor; 542, oil pipe; 54 3. Rod head; 544. Locking seat; 545. Electric lock; 546. Locking clamp block; 547. Locking groove; 548. Limit rod; 55. Electric clamping assembly; 551. AC servo motor; 552. Sliding rod; 553. Internal clamping block; 554. Oblique pressure block; 555. Limit fixing seat; 556. Moving block; 557. Push rod; 558. Arc groove; 6. Mold foot; 7. Ejector plate; 8. Lower fixing plate. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0031] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] Unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] See also Figure 1-9 , a speaker housing injection mold, including an upper sealing plate 1 and a female mold plate 2, the female mold plate 2 is arranged at the lower end of the upper sealing plate 1, the first mold core 3 is arranged inside the female mold plate 2, the second mold core 4 is arranged inside the female mold plate 2, the lower end of the female mold plate 2 is fixedly connected to the male mold system 5 by bolts, the lower end of the male mold system 5 is fixedly connected to the mold foot 6 by bolts, the inner side of the mold foot 6 is slidably connected to the ejector plate 7, the lower end of the ejector plate 7 is provided with a lower fixed plate 8, the male mold system 5 includes a male mold plate 51, the inner side of the male mold plate 51 is penetrated and fixedly connected with a cooling water channel 52, the inner side of the male mold plate 51 is installed with a side clamping assembly 53, the inner side of the male mold plate 51 is installed with a hydraulic clamping assembly 54, and the inner side of the male mold plate 51 is provided with an electric clamping assembly 55. Reference Figure 1 and Figure 2 During the use of the device, first use a detergent and a soft cloth to clean the surfaces of the various components of the device, and then snap the first mold core 3 and the second mold core 4 onto the upper end of the male mold system 5 respectively, and then cover the female mold plate 2 to ensure that the female mold plate 2 simultaneously wraps the first mold core 3 and the second mold core 4, and then align the injection holes on the upper sealing plate 1 with the injection holes on the female mold plate 2, and place the upper sealing plate 1 on the female mold plate 2, which can ensure that no dust, oil stains or other impurities adhere to the device components, thereby ensuring the cleanliness of the injection molding environment.

[0035] See also Figure 1-9 In one embodiment, the inner side of the mother mold plate 2 is in contact with the outer side of the first mold core 3, and the inner side of the mother mold plate 2 is in contact with the outer side of the second mold core 4, and the top surface of the first mold core 3 and the top surface of the second mold core 4 are in the same horizontal plane. Figure 1 and Figure 2 , inject a certain amount of raw materials into the mold cavities of the first mold core 3 and the second mold core 4 through the injection holes on the upper sealing plate 1 and the mother mold plate 2, observe whether the mold flow channel and the outlet are unobstructed, and after confirming that the device is in good production status, start the production of the injection molded audio housing, so as to ensure the accuracy of the injection molding process and achieve a better injection molding effect;

[0036] See also Figure 1-9 In one embodiment, the outer side of the cooling water channel 52 is in contact with the inner side of the first mold core 3, two hydraulic clamping assemblies 54 are provided, and the two hydraulic clamping assemblies 54 are symmetrically distributed, and two electric clamping assemblies 55 are provided, and the two electric clamping assemblies 55 are symmetrically distributed. Figure 3The cooling water channel 52 can not only dissipate heat but also assist the device in positioning during the assembly process. Such a design is more reasonable and can achieve a better compacting effect during product manufacturing to ensure product quality.

[0037] See also Figure 1-9 In one embodiment, the side clamping assembly 53 includes a side fixing seat 531, the inner side of the side fixing seat 531 is fixedly connected with a side servo motor 532 by bolts, the outer side of the main shaft of the side servo motor 532 is fixedly connected with a square head hydraulic rod 533, the outer side of the square head hydraulic rod 533 is slidably connected with a positioning block 534, the inner side of the positioning block 534 is provided with an inter-block slide 535, a side pressure block 536 is installed on one side of the positioning block 534, the central axis of the side servo motor 532 and the central axis of the square head hydraulic rod 533 are on the same straight line, the outer side of the square head hydraulic rod 533 is in contact with the inner side of the inter-block slide 535, and the angle between the square head hydraulic rod 533 and the side pressure block 536 is 90°. Reference Figure 4 and Figure 5 , the AC servo motor 551 is started by controlling the electric signal, driving the sliding rod 552 to slide inside the inner clamping block 553 and push the oblique pressing block 554, so that the moving block 556 drives the inner mounted supporting rod 557 to support the first mold core 3. Such a design is conducive to the mutual cooperation between the components and avoids the obstruction between the components;

[0038] See also Figure 1-9 In one embodiment, the hydraulic clamping assembly 54 includes a hydraulic motor 541, an oil pipe 542 is installed on the upper end of the hydraulic motor 541, a rod head 543 is fixedly connected to the outer side of the main shaft of the hydraulic motor 541, a locking seat 544 is installed on one side of the hydraulic motor 541, an electric control lock 545 is installed on the upper end of the locking seat 544, a locking clamping block 546 is arranged on the inner side of the locking seat 544, a locking groove 547 is opened on the inner side of the locking clamping block 546, and a limit rod 548 is installed on the inner side of the locking clamping block 546 The angle between the oil pipe 542 and the hydraulic motor 541 is 90°, the oil pipe 542 is set in a "U" shape, the rod head 543 and the hydraulic motor 541 are on the same axis, two electric control locks 545 are provided, and the two electric control locks 545 are centrally symmetrically distributed on the upper end of the locking seat 544. The rod head 543 is slidably connected to the inner side of the locking groove 547, and the angle between the rod head 543 and the locking pressing block 546 is 90°. The outer side of the limit rod 548 is in contact with the outer side of the electric control lock 545. Reference Figure 6 and Figure 7When the two hydraulic clamping components 54 perform the die pressing operation, the amount of oil flowing from the oil pipe 542 to the hydraulic motor 541 is controlled by pressing the button on the throttle valve in the oil pipe 542 away from the main shaft end of the hydraulic motor 541, so as to adjust the pressure generated by the hydraulic motor 541. The check valve in the oil pipe 542 close to the main shaft end of the hydraulic motor 541 can effectively prevent the hydraulic oil in the hydraulic clamping component 54 from flowing back, thereby ensuring the stability of the clamping force of the hydraulic motor 541. When the main shaft of the hydraulic motor 541 moves, it will drive the rod head 543 to move and squeeze the locking clamping block 546. When the locking clamping block 546 is squeezed, When the pressure moves, the limit rod 548 will no longer rotate. Now, the limit rod 548 will rotate under the elastic force provided by the electric control lock 545 and will be clamped with another electric control lock 545. At this time, the limit rod 548 will limit the rod head 543 together with the locking groove 547 to play a locking function, ensuring that the rod head 543 is against the locking and clamping block 546, so that the locking and clamping block 546 produces a stable clamping force on the second mold core 4, thereby providing a higher clamping force to ensure the tight closure of the mold, which is convenient for the injection molding production of the front part of the sound housing. Such a design facilitates the transmission of forces between components and improves the operating efficiency of the device.

[0039] See also Figure 1-9 In one embodiment, the electric clamping assembly 55 includes an AC servo motor 551, the lower end of the main shaft of the AC servo motor 551 is fixedly connected to a sliding rod 552, an inner clamping block 553 is installed on the outer side of the sliding rod 552, an oblique pressing block 554 is slidably connected to the inner side of the inner clamping block 553, a limited position fixing seat 555 is installed on the outer side of the inner clamping block 553, a moving block 556 is installed on one side of the limited position fixing seat 555, and a push rod 557 is fixedly connected to the inner side of the moving block 556 by bolts, and one end of the push rod 557 is provided There is an arc groove 558, the AC servo motor 551 and the sliding rod 552 are on the same axis, the angle between the sliding rod 552 and the inner clamping block 553 is 90°, the outer side of the inner clamping block 553 is in contact with the inner side of the limit fixing seat 555, the bottom end surface of the limit fixing seat 555 and the bottom end surface of the moving block 556 are on the same horizontal plane, two abutting rods 557 are provided, and the two abutting rods 557 are symmetrically distributed on the inner side of the moving block 556, and the number of arc grooves 558 corresponds to the number of abutting rods 557. Figure 8 and Fig. 9 When the two electric clamping components 55 perform the molding operation, the side servo motor 532 is started by controlling the electrical signal, driving the square head hydraulic rod 533 to slide inside the inter-block slide groove 535, so that the other end of the square head hydraulic rod 533 is against the side pressure block 536, so as to clamp one side of the first mold core 3. Due to the electrical signal control, it has a faster response speed, which can ensure the consistency of the clamping force in all directions during molding, reduce the product quality caused by parameter fluctuations, and such a design can improve the fit between components and further improve the molding quality.

[0040] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A speaker housing injection mold, characterized in that: include: An upper sealing plate (1) and a mother template (2); A female mold plate (2) is arranged at the bottom of the upper sealing plate (1), a first mold core (3) is arranged inside the female mold plate (2), a second mold core (4) is arranged inside the female mold plate (2), a male mold system (5) is fixedly connected to the bottom of the female mold plate (2) by bolts, a mold foot (6) is fixedly connected to the bottom of the male mold system (5) by bolts, an ejection plate (7) is slidably connected to the inside of the mold foot (6), and a lower fixed plate (8) is arranged at the bottom of the ejection plate (7); The male mold system (5) comprises a male mold plate (51), a cooling water path (52) is fixedly connected to the inner side of the male mold plate (51), a side clamping assembly (53) is installed on the inner side of the male mold plate (51), a hydraulic clamping assembly (54) is installed on the inner side of the male mold plate (51), and an electric clamping assembly (55) is arranged on the inner side of the male mold plate (51).

2. The speaker housing injection mold according to claim 1, characterized in that: The inner side of the mother template (2) is in contact with the outer side of the first mold core (3), and the inner side of the mother template (2) is in contact with the outer side of the second mold core (4). The top surface of the first mold core (3) and the top surface of the second mold core (4) are in the same horizontal plane.

3. The speaker housing injection mold according to claim 1, characterized in that: The outer side of the cooling water channel (52) is in contact with the inner side of the first mold core (3); two hydraulic clamping assemblies (54) are provided, and the two hydraulic clamping assemblies (54) are symmetrically distributed; two electric clamping assemblies (55) are provided, and the two electric clamping assemblies (55) are symmetrically distributed.

4. The speaker housing injection mold according to claim 1, characterized in that: The side clamping assembly (53) comprises a side fixing seat (531), the inner side of the side fixing seat (531) is fixedly connected to a side servo motor (532) by bolts, the outer side of the main shaft of the side servo motor (532) is fixedly connected to a square head hydraulic rod (533), the outer side of the square head hydraulic rod (533) is slidably connected to a positioning block (534), the inner side of the positioning block (534) is provided with an inter-block sliding groove (535), and a side pressure block (536) is installed on one side of the positioning block (534).

5. The speaker housing injection mold according to claim 4, characterized in that: The central axis of the side servo motor (532) and the central axis of the square head hydraulic rod (533) are on the same straight line, the outer side of the square head hydraulic rod (533) is in contact with the inner side of the inter-block slide groove (535), and the angle between the square head hydraulic rod (533) and the side pressure block (536) is 90°.

6. The speaker housing injection mold according to claim 1, characterized in that: The hydraulic clamping assembly (54) comprises a hydraulic motor (541), an oil pipe (542) is installed on the upper end of the hydraulic motor (541), a rod head (543) is fixedly connected to the outer side of the main shaft of the hydraulic motor (541), a locking seat (544) is installed on one side of the hydraulic motor (541), an electric control lock (545) is installed on the upper end of the locking seat (544), a locking clamping block (546) is arranged on the inner side of the locking seat (544), a locking groove (547) is provided on the inner side of the locking clamping block (546), and a limiting rod (548) is installed on the inner side of the locking clamping block (546).

7. The speaker housing injection mold according to claim 6, characterized in that: The angle between the oil pipe (542) and the hydraulic motor (541) is 90°, the oil pipe (542) is arranged in a "U" shape, the rod head (543) and the hydraulic motor (541) share the same axis, two electric control locks (545) are arranged, and the two electric control locks (545) are centrally symmetrically distributed at the upper end of the locking seat (544).

8. The speaker housing injection mold according to claim 6, characterized in that: The inner side of the locking groove (547) is slidably connected with a rod head (543), the angle between the rod head (543) and the locking pressing block (546) is 90°, and the outer side of the limiting rod (548) is in contact with the outer side of the electric control lock (545).

9. The speaker housing injection mold according to claim 1, characterized in that: The electric clamping assembly (55) comprises an AC servo motor (551), the lower end of the main shaft of the AC servo motor (551) is fixedly connected to a sliding rod (552), an inner clamping block (553) is installed on the outer side of the sliding rod (552), an oblique clamping block (554) is slidably connected to the inner side of the inner clamping block (553), a limited position fixing seat (555) is installed on the outer side of the inner clamping block (553), a moving block (556) is installed on one side of the limited position fixing seat (555), a push rod (557) is fixedly connected to the inner side of the moving block (556) by bolts, and an arc groove (558) is provided at one end of the push rod (557).

10. The speaker housing injection mold according to claim 9, characterized in that: The AC servo motor (551) and the sliding rod (552) are coaxial, the angle between the sliding rod (552) and the inner clamping block (553) is 90°, the outer side of the inner clamping block (553) is in contact with the inner side of the limit fixing seat (555), the bottom end surface of the limit fixing seat (555) and the bottom end surface of the moving block (556) are on the same horizontal plane, two push rods (557) are provided, and the two push rods (557) are symmetrically distributed on the inner side of the moving block (556), and the number of the arc grooves (558) corresponds to the number of the push rods (557).

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