Mould for woofer with left front door and right front door

Abstract

The utility model discloses a left and right front door bass loudspeaker mold, and relates to the technical field of left and right front door bass loudspeaker manufacturing, the left and right front door bass loudspeaker mold comprises a fixed mold and a movable mold, the fixed mold is provided with a sprue bush mounting hole, and the movable mold is provided with a diversion groove corresponding to the sprue bush mounting hole; the movable mold is provided with a mold plate groove communicated with the flow dividing groove, a loudspeaker mold plate is arranged in the mold plate groove, the movable mold is provided with a fixing groove, the loudspeaker mold plate is provided with a matching groove corresponding to the fixing groove in a communicated mode, and fixing blocks are arranged in the fixing groove and the matching groove in a clamped mode; during injection molding, plastic melt is injected from the sprue bush mounting hole of the fixed mold and enters the mold plate groove through the diversion groove of the movable mold, the fixing block is clamped in the fixing groove and the matching groove, the loudspeaker mold plate is fixed, shaking of the loudspeaker mold plate in the injection molding process is reduced, and therefore the molding effect of a plastic part is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of left and right front door bass loudspeaker manufacturing technology, in particular to a left and right front door bass loudspeaker mold. BACKGROUND

[0002] In an automobile sound system, left and right front door bass loudspeakers play a key role in sound quality and sound effect. With the development of the automobile industry and the improvement of consumers' requirements for sound quality, higher standards are put forward for the precision, quality and production efficiency of loudspeakers and their injection molds. As a key technology for manufacturing loudspeaker housings and other components, the development of injection mold technology affects the cost, quality and capacity of loudspeaker production. Good mold design and manufacturing can ensure the accurate size and smooth appearance of loudspeaker components, which is beneficial to improving the acoustic performance and meeting the demand for large-scale production

[0003] The existing left and right front door bass loudspeaker mold is mainly a traditional two-plate injection mold composed of a fixed mold and a movable mold. During injection molding, the plastic melt is injected into the cavity through the gating system, and after cooling and solidification, the mold is opened manually to separate the movable mold from the fixed mold.

[0004] According to the related technology in the above, the inventor believes that the shaking of the loudspeaker template in the cavity during injection molding affects the molding effect of the plastic part. UTILITY MODEL CONTENT

[0005] The purpose of the present application is to provide a left and right front door bass loudspeaker mold to improve the problem of the shaking of the loudspeaker template in the cavity during injection molding affecting the molding effect of the plastic part.

[0006] The left and right front door bass loudspeaker mold provided by the present application adopts the following technical solution: a fixed mold and a movable mold are provided, the fixed mold is provided with a gate sleeve mounting hole, and the movable mold is provided with a shunt groove corresponding to the gate sleeve mounting hole; the movable mold is provided with a template groove in communication with the shunt groove, the template groove is provided with a loudspeaker template, the movable mold is provided with a fixing groove, the loudspeaker template is provided with a matching groove corresponding to the fixing groove in communication, and a fixing block is clamped in the fixing groove and the matching groove.

[0007] By adopting the above technical solution, during injection molding, the plastic melt is injected from the gate sleeve mounting hole of the fixed mold, enters the template groove through the shunt groove of the movable mold, and the fixing block is clamped in the fixing groove and the matching groove to fix the loudspeaker template, which helps to reduce the shaking of the loudspeaker template during injection molding, thereby improving the molding effect of the plastic part.

[0008] Optionally, the fixing grooves are arranged at intervals along the side wall of the template groove.

[0009] By adopting the technical scheme, the plurality of fixing blocks can fix the loudspeaker template from different positions, further enhancing the fixing effect, and compared with a single fixing block, the plurality of fixing blocks can better disperse the injection pressure, reduce the shaking or displacement of the loudspeaker template under the action of local pressure, and improve the forming precision of the plastic part.

[0010] Optionally, part of the fixing blocks are provided with chamfers, and the fixing grooves are adaptively arranged with the fixing blocks.

[0011] By adopting the technical scheme, the installation stability of the fixing block is improved by arranging the chamfer.

[0012] Optionally, the chamfer includes a circular arc chamfer and a straight chamfer.

[0013] By adopting the technical scheme, different types of chamfers can be selected according to actual requirements and the specific structure of the mold, the circular arc chamfer is smoother in the installation process, and the damage to the edges of the fixing groove and the matching groove can be reduced; the straight chamfer can also increase the contact area between the fixing block and the groove wall, so that the connection between them is more compact, thereby improving the stability of the fixing block.

[0014] Optionally, a plurality of ejection rods are arranged through the movable mold in the up-down direction, and an end of the ejection rod close to the movable mold can push the formed plastic part by abutting against the formed plastic part.

[0015] By adopting the technical scheme, when the plastic part is cooled and solidified, the ejection rod is pushed to abut against the formed plastic part at the end close to the movable mold, so that the plastic part is ejected from the movable mold, and the setting of the ejection rod makes the demolding process of the plastic part more convenient and fast, thereby improving the production efficiency and the yield of the plastic part.

[0016] Optionally, a plurality of positioning blocks are arranged on the top surface of the movable mold, and a positioning groove corresponding to the positioning block is arranged on the side of the fixed mold close to the movable mold.

[0017] By adopting the technical scheme, in the mold closing process, the positioning block is inserted into the positioning groove, which helps to ensure the dimensional accuracy and shape accuracy of the plastic part, reduces the defects of the plastic part caused by the misalignment of the mold, and improves the product quality.

[0018] Optionally, a plurality of cooling holes are arranged on the side wall of the fixed mold, and a cooling channel is arranged in the fixed mold and communicates with the cooling holes.

[0019] By adopting the technical scheme, the cooling medium (such as water or coolant) is introduced into the cooling channel through the cooling holes, which can accelerate the cooling speed of the plastic melt, shorten the forming cycle, and improve the production efficiency. At the same time, uniform cooling can reduce the stress in the plastic part, reduce defects such as deformation and cracking of the plastic part, and improve the quality and performance of the plastic part.

[0020] Optionally, the cooling channel is bent.

[0021] By adopting the above technical scheme, the bent cooling channel increases the flow path and residence time of the cooling medium in the fixed mold, so that the cooling medium can more fully absorb the heat of the plastic melt, and the cooling effect is improved.

[0022] Optionally, the movable mold is provided with a plurality of side core pulling assemblies on one side.

[0023] By adopting the above technical scheme, when the plastic part has a special structure such as a side recess or a side hole, the side core pulling assembly can first pull out the side core during mold opening, and then eject the plastic part, thereby realizing the demolding of the plastic part with complex structure, which enables the mold to produce more complex products, expands the application range of the mold, and improves the versatility and practicality of the mold.

[0024] In summary, the low-frequency speaker mold for left and right front doors has the following technical effects:

[0025] 1. During injection molding, the plastic melt is injected from the gate sleeve mounting hole of the fixed mold, enters the mold plate groove through the shunt groove of the movable mold, and the fixing block is clamped in the fixed groove and the matching groove, fixing the speaker mold plate, which helps to reduce the shaking of the speaker mold plate during injection molding, thereby improving the molding effect of the plastic part;

[0026] 2. Multiple fixing blocks can fix the speaker mold plate from different positions, further enhancing the fixing effect. Compared with a single fixing block, multiple fixing blocks can better disperse the injection pressure, reduce the shaking or displacement of the speaker mold plate under local pressure, and improve the molding precision of the plastic part;

[0027] 3. Different types of chamfers can be selected according to actual needs and the specific structure of the mold. The circular chamfer is smoother during installation and can reduce damage to the edges of the fixed groove and the matching groove; the straight chamfer can also increase the contact area between the fixing block and the groove wall, making the connection between them more secure, thereby improving the stability of the fixing block. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic view of the overall structure of the left and right front door low-frequency speaker mold;

[0029] Figure 2 is a cross-sectional view of the fixed mold in the embodiment.

[0030] In the figure, 1, fixed mold; 11, gate sleeve mounting hole; 2, movable mold; 21, flow dividing groove; 22, mold plate groove; 23, fixed groove; 3, loudspeaker mold plate; 31, matching groove; 4, fixing block; 41, chamfer; 411, circular chamfer; 412, straight chamfer; 5, ejection rod; 6, positioning block; 61, positioning groove; 7, cooling hole; 71, cooling channel; 8, core-pulling assembly. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying Figure 1 - the accompanying Figure 2 , and make further detailed description of the present application.

[0032] The left and right front door bass loudspeaker mold, referring to Figure 1 , including fixed mold 1 and movable mold 2, fixed mold 1 and movable mold 2 are basic components of injection mold, and they cooperate to form a cavity for molding plastic parts. The top surface of the movable mold 2 is provided with a plurality of positioning blocks 6, and the positioning blocks 6 are integrally connected with the movable mold 2. The side of the fixed mold 1 abutting the movable mold 2 is provided with a positioning groove 61 corresponding to the positioning block 6, and the size of the positioning groove 61 is matched with the positioning block 6.

[0033] The side of the fixed mold 1 away from the movable mold 2 is provided with a gate sleeve mounting hole 11, and the gate sleeve mounting hole 11 is used to install a gate sleeve (not shown in the figure), and the gate sleeve is a channel for the plastic melt to enter the mold cavity. The movable mold 2 is provided with a flow dividing groove 21 corresponding to the gate sleeve mounting hole 11, and the flow dividing groove 21 is an integral structure with the movable mold 2. The movable mold 2 is provided with a mold plate groove 22 in communication with the flow dividing groove 21, and the mold plate groove 22 is also integrally formed with the movable mold 2. The loudspeaker mold plate 3 is placed in the mold plate groove 22, and the loudspeaker mold plate 3 is a key component for molding the left and right front door bass loudspeakers, and its shape and size determine the shape and size of the final plastic parts.

[0034] The movable mold 2 is provided with a fixed groove 23, which is integrally formed during the machining process of the movable mold 2. The loudspeaker mold plate 3 is provided with a matching groove 31 in communication corresponding to the fixed groove 23, and the positions of the fixed groove 23 and the matching groove 31 correspond when the loudspeaker mold plate 3 is placed in the mold plate groove 22. The fixed groove 23 and the matching groove 31 are provided with a fixing block 4, and the fixing block 4 is clamped in the fixed groove 23 and the matching groove 31 by interference fit, and the fixing block 4 is fixed in the fixed groove 23 by means of a countersunk head bolt. The fixing block 4 is made of polyether ether ketone material, which is a high-performance special engineering plastic with excellent high-temperature resistance and good mechanical properties, moderate elastic modulus, and can produce elastic deformation when clamped into the fixed groove 23 and the matching groove 31.

[0035] The fixed grooves 23 are arranged at intervals along the side walls of the template groove 22, and the number is not specifically required. Some of the fixed blocks 4 are provided with chamfers 41, and the fixed grooves 23 are arranged in a matched manner with the fixed blocks 4. The chamfer 41 comprises a circular chamfer 411 and a straight chamfer 412.

[0036] The movable mold 2 is provided with a plurality of ejection rods 5 in the up-down direction. The ejection rod 5 is connected to the movable mold 2 in a gap matching manner. The end of the ejection rod 5 close to the movable mold 2 can push the molded plastic part out by abutting against the molded plastic part. When the injection molding is completed, the movable mold 2 is separated from the fixed mold 1. The ejection rod 5 is pushed to abut against the plastic part, so that the molded plastic part is ejected from the mold.

[0037] The fixed mold 1 is provided with a plurality of cooling holes 7 on the side wall, and the number is not specifically required. The fixed mold 1 is provided with a cooling channel 71 connected with the cooling holes 7. The cooling channel 71 is formed by machining inside the fixed mold 1. In use, two of the cooling holes 7 are selected as the cooling liquid flow path, and the other cooling holes 7 are blocked to pass in the cooling liquid. The cooling channel 71 is arranged in a bending manner, so as to increase the flow path and time of the cooling medium in the fixed mold 1. The movable mold 2 is provided with a plurality of side core-pulling assemblies 8, preferably two in this embodiment. The core-pulling assembly 8 comprises a sliding block and an inclined guide pillar (not shown in the figure).

[0038] The implementation principle of the embodiment of the present application is as follows:

[0039] In actual use, first, the mold is closed. The positioning block 6 on the top surface of the movable mold 2 is accurately inserted into the positioning groove 61 of the fixed mold 1 to ensure the accurate position of the cavity. Then, the plastic melt is injected from the gate sleeve installation hole 11 of the fixed mold 1 through the gate sleeve, uniformly dispersed to the template groove 22 through the distribution groove 21 of the movable mold 2. At this time, the loudspeaker template 3 is fixed by the clamping structure of the fixed block 4, the fixed groove 23 and the matching groove 31, so as to reduce the shaking and stabilize the filling and molding of the melt. The cooling liquid in the cooling holes 7 and the bending cooling channel 71 of the fixed mold 1 accelerates the cooling and solidification of the plastic part, so as to ensure the molding quality. After the plastic part is completed injection molding and cooling, the movable mold 2 is separated from the fixed mold 1. The side core-pulling assembly 8 completes partial demolding, and the ejection rod 5 abuts against the plastic part to completely eject the plastic part under the pushing of external force. This is helpful to reduce the shaking of the loudspeaker template 3 and improve the molding effect of the plastic part.

[0040] The embodiments of the specific implementation manner are the preferred embodiments of the present application, and do not limit the protection scope of the present application. The same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A left and right front door bass speaker mold, comprising a fixed mold (1) and a movable mold (2), the fixed mold (1) is provided with a gate bush mounting hole (11), and the movable mold (2) is provided with a shunt groove (21) corresponding to the gate bush mounting hole (11); characterized in that: The movable mold (2) is provided with a mold plate groove (22) communicated with the flow dividing groove (21), a loudspeaker mold plate (3) is arranged in the mold plate groove (22), the movable mold (2) is provided with a fixing groove (23), the loudspeaker mold plate (3) is provided with a matching groove (31) communicated with the fixing groove (23) correspondingly, and the fixing groove (23) and the matching groove (31) are clamped with a fixing block (4).

2. The left and right front door woofer mold of claim 1, wherein: The fixing grooves (23) are arranged at intervals along the side wall of the mold plate groove (22).

3. The left and right front door woofer mold of claim 2, wherein: Part of the fixing blocks (4) are provided with chamfers (41), and the fixing grooves (23) are adaptively arranged with the fixing blocks (4).

4. The left and right front door woofer mold of claim 3, wherein: The chamfer (41) comprises a circular arc chamfer (411) and a straight chamfer (412).

5. The left and right front door woofer mold of claim 1, wherein: A plurality of ejection rods (5) are arranged through the movable mold (2) in the up-down direction, and the end of the ejection rod (5) close to the movable mold (2) can push out the molded plastic part by abutting against the molded plastic part.

6. The left and right front door woofer mold of claim 5, wherein: A plurality of positioning blocks (6) are arranged on the top surface of the movable mold (2), and the fixed mold (1) is provided with a positioning groove (61) corresponding to the positioning block (6) on the side close to the movable mold (2).

7. The left and right front door woofer mold of claim 1, wherein: A plurality of cooling holes (7) are arranged on the side wall of the fixed mold (1), and the fixed mold (1) is provided with a cooling channel (71) communicated with the cooling holes (7).

8. The left and right front door woofer mold of claim 7, wherein: The cooling channel (71) is arranged in a bending mode.

9. The left and right front door woofer mold of claim 1, wherein: A plurality of side core pulling assemblies (8) are arranged on one side of the movable mold (2).

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