Acoustic plastic shell injection molding device and molding process
By designing an audio plastic shell injection molding device that combines an ejection hydraulic cylinder and a ramp, the problem of manual intervention in the collection of molded products in the prior art is solved, and automated collection and stacking is realized, which improves production efficiency and reduces labor costs.
Patent Information
- Application Number
- CN202510364361.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing audio plastic shell injection molding devices rely on manual intervention or simple slides during the collection of molding products, resulting in surface scratches and disordered stacking. Especially in multi-cavity molds or high-beat production lines, operators need to frequently intervene in handling, which is inefficient and labor costs are high.
An audio plastic shell injection molding device is designed, and a mold release and collection process is adopted for combining the ejection hydraulic cylinder and the ramp. The sealing sliding of the ejection rod and the mold cavity is achieved without damage. The cushion and rubber gasket are used to avoid hard collisions and adjust the soft brush to guide the product stack.
It realizes automated collection and stacking of molded products without intervention, avoids the problems of surface scratches and disordered stacking, improves production efficiency and reduces labor costs.
Smart Images
Figure CN120096025A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of injection molding, and in particular relates to an injection molding device and a molding process for an acoustic plastic shell. Background Art
[0002] As the market demand for audio equipment grows, the injection molding process of plastic housings faces technical challenges of high efficiency, precision and product protection. Existing plastic housing injection molding devices have some problems. The collection process of molded products relies on manual intervention or simple slides, hard collisions can easily lead to surface scratches, and stacking is disordered. Especially in multi-cavity molds or high-beat production lines, operators need to frequently intervene in the handling, resulting in low efficiency and high labor costs. Summary of the invention
[0003] The purpose of the present invention is to provide an injection molding device and a molding process for an acoustic plastic shell, so as to solve the problems existing in the background technology.
[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:
[0005] A device for injection molding a plastic housing of an acoustic speaker, comprising a body, an injection molding extruder, a chassis and a mold, wherein the injection molding extruder is mounted on the right side of the upper end of the body, the chassis is fixedly mounted on the left side of the upper end of the body, the mold is composed of a fixed mold and a movable mold, the fixed mold is provided with a mold cavity, the mold cavity is provided with an injection port connected to the injection molding extruder, the fixed mold is fixedly mounted on the middle of the upper end of the body, the movable mold is slidably mounted on the upper end of the body, the body is equipped with a driving mechanism, and a collecting cavity is opened on the left side of the body;
[0006] The driving mechanism comprises an injection hydraulic cylinder and an ejection hydraulic cylinder, wherein the injection hydraulic cylinder is fixedly assembled inside the chassis, the movable end of the injection hydraulic cylinder is fixedly connected to the movable mold, the ejection hydraulic cylinder is fixedly assembled at the right end of the fixed mold, the movable end of the ejection hydraulic cylinder is fixedly assembled with an ejector rod, and the ejector rod is sealed and slidably assembled on the right side of the fixed mold;
[0007] An inclined channel is provided on the right side of the upper end of the collecting chamber, and rubber gaskets are installed on both the left and right sides of the collecting chamber.
[0008] Preferably, the number of the ejection hydraulic cylinders is four, and the four ejection hydraulic cylinders are fixedly assembled at the right end of the fixed mold, and the four ejection hydraulic cylinders are evenly distributed at the four corners of the right end of the fixed mold.
[0009] Preferably, the chassis is slidably mounted with a plurality of positioning rods, and the right ends of the plurality of positioning rods are fixedly connected to the movable mold.
[0010] Preferably, the upper side of the fuselage is also equipped with an adjustment mechanism, which includes two adjustment hydraulic cylinders, both of which are fixedly installed inside the chassis, and the movable end of the adjustment hydraulic cylinder is fixedly equipped with an adjustment rod, and the adjustment rod is sealingly and slidingly connected to the movable mold left and right, and a guide tube is fixedly provided at the left end of the movable mold, and the adjustment rod is slidingly connected to the guide tube left and right, and the guide tube is matched with the chassis for left and right sliding, and an adjustment soft brush is fixedly provided on the upper side of the left end of the collecting chamber.
[0011] Preferably, the upper and lower sides of the rubber gasket are respectively an inclined end and a vertical end, a C-shaped spring piece is fixedly provided at the connection between the inclined end and the vertical end of the rubber gasket, and the other end of the C-shaped spring piece is fixedly connected to the collection chamber.
[0012] Preferably, the front and rear sides of the fuselage are both equipped with slide rails, and the left and right ends of the lower side of the movable mold are fixedly equipped with sliders, and the sliders are slidably assembled to the upper side of the slide rails.
[0013] A plastic housing injection molding process for an audio system comprises the following steps:
[0014] S1: The injection hydraulic cylinder starts, and drives the movable mold to move rightward to the fixed mold through its movable end. At the same time, the adjustment hydraulic cylinder drives the adjustment rod to move synchronously with the movable mold until the movable mold and the fixed mold are closed. Then the injection extruder injects into the mold cavity through the injection port until the product inside the mold cavity is cooled and shaped.
[0015] S2: After the product is cooled and shaped, the injection hydraulic cylinder starts, and its moving end drives the movable mold to move to the left and away from the fixed mold. At the same time, the adjustment hydraulic cylinder drives the adjustment rod to move synchronously with the movable mold until the movable mold is separated from the fixed mold. The adjustment hydraulic cylinder stops, and the injection hydraulic cylinder continues to drive the movable mold to move to the left. At this time, the adjustment rod extends out, and then the ejection hydraulic cylinder starts to drive the ejector rod to move to the left to push out the molded product. When the product moves away from the mold cavity, the upper side of the product will contact the adjustment rod, causing the molded product to begin to tilt, and then be transported down along the ramp;
[0016] S3: The upper left side of the molded product conveyed along the ramp will collide with and squeeze the adjustment soft brush. At this time, the right side of the molded product will leave the ramp. Finally, the molded product is conveyed downward by gravity, so that the molded products are stacked in the collection chamber, and the molding and collection of the products are completed.
[0017] Advantages of the present invention:
[0018] The ejection mechanism achieves damage-free demoulding through the sealed sliding cooperation between the ejector rod and the mold cavity. The inclined angle of the ramp (less than 45 degrees) combined with the buffer design of the rubber gasket and C-shaped spring can avoid hard collision or flipping when the finished product slides down, protecting the surface integrity; the elastic contact design of the soft brush can not only guide the product sliding direction, but also absorb the impact through deformation, reduce the risk of scratches, and assist in product stacking and positioning. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.
[0020] Figure 1 The structure of the plastic shell injection molding device of the present invention is shown in FIG. Figure 1 ;
[0021] Figure 2 The structure of the plastic shell injection molding device of the present invention is shown in FIG. Figure 2 ;
[0022] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;
[0023] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;
[0024] Figure 5 The structure of the plastic shell injection molding device of the present invention is shown in FIG. Figure 3 ;
[0025] Figure 6 for Figure 5 The enlarged schematic diagram of the center C;
[0026] The main component symbols are described as follows:
[0027] Body 1, injection molding extruder 11, chassis 12, mold 13, fixed mold 131, movable mold 132, mold cavity 133, injection port 134, collecting cavity 14, ejection hydraulic cylinder 141, ejector rod 142, ramp 143, rubber gasket 144, positioning rod 15, adjustment rod 16, guide tube 161, adjustment soft brush 162, C-shaped spring 163, slide rail 17, slider 171. DETAILED DESCRIPTION
[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0029] like Figure 1-2As shown, an injection molding device for a plastic housing of an audio system of the present invention comprises a body 1, an injection molding extruder 11, a chassis 12 and a mold 13, wherein the injection molding extruder 11 is mounted on the upper right side of the body 1, and the chassis 12 is fixedly mounted on the upper left side of the body 1;
[0030] The mold 13 is composed of a fixed mold 131 and a movable mold 132. The fixed mold 131 is provided with a mold cavity 133. The mold cavity 133 is provided with an injection port 134 connected to the injection extruder 11. The fixed mold 131 is fixedly assembled at the middle of the upper end of the fuselage 1. The movable mold 132 is slidably assembled at the upper end of the fuselage 1. The fuselage 1 is equipped with a driving mechanism. A collection chamber 14 is provided on the left side of the fuselage 1. The collection chamber 14 is used to collect the molded products.
[0031] A ramp 143 is provided on the right side of the upper end of the collecting chamber 14, and the ramp 143 can guide the molded product. The inclination angle of the ramp 143 is less than 45 degrees to prevent the molded product from tilting too much and turning over. Rubber gaskets 144 are installed on both sides of the collecting chamber 14, and the rubber gaskets 144 can prevent the molded product from hard collision with the collecting chamber.
[0032] like Figure 2-4 As shown, the driving mechanism includes an injection hydraulic cylinder and an ejection hydraulic cylinder 141, the injection hydraulic cylinder is fixedly assembled inside the chassis 12, the movable end of the injection hydraulic cylinder is fixedly connected to the movable mold 132, the ejection hydraulic cylinder 141 is fixedly assembled on the right end of the fixed mold 131, and the movable end of the ejection hydraulic cylinder 141 is fixedly assembled with a push rod 142, and the push rod 142 can eject the molded product out of the mold cavity 133, and the push rod 142 is sealed and slidably assembled on the right side of the fixed mold 131, and the chassis 12 is slidably assembled with a plurality of positioning rods 15, and the right ends of the plurality of positioning rods 15 are fixedly connected to the movable mold 132, and the front and rear sides of the fuselage 1 are both assembled with slide rails 17, and the left and right ends of the lower side of the movable mold 132 are both fixedly assembled with sliders 171, and the sliders 171 are slidably assembled with the upper side of the slide rails 17.
[0033] There are four ejection hydraulic cylinders 141, which are fixedly assembled at the right end of the fixed mold 131, and are evenly distributed at the four corners of the right end of the fixed mold 131;
[0034] like Figure 5-6 As shown, the upper side of the fuselage 1 is also equipped with an adjustment mechanism, which includes two adjustment hydraulic cylinders, both of which are fixedly assembled inside the chassis 12, and the movable end of the adjustment hydraulic cylinder is fixedly equipped with an adjustment rod 16, and the adjustment rod 16 is sealed and slidably connected to the movable mold 132 left and right, and a guide tube 161 is fixedly provided at the left end of the movable mold 132, and the adjustment rod 16 is slidably connected to the guide tube 161 left and right, and the guide tube 161 is matched with the chassis 12 left and right sliding, and an adjustment soft brush 162 is fixedly provided on the upper side of the left end of the collecting chamber 14, and the adjustment soft brush 162 can avoid hard collision and can also produce deformation, so as to facilitate the adjustment of the soft brush 162 to adjust the orientation;
[0035] The upper and lower sides of the rubber gasket 144 are respectively an inclined end and a vertical end. The setting of the rubber gasket 144 can guide and collect the molded products. A C-shaped spring piece 163 is fixedly provided at the connection between the inclined end and the vertical end of the rubber gasket 144. The other end of the C-shaped spring piece 163 is fixedly connected to the collection chamber 14. The C-shaped spring piece 163 can provide reset elasticity for the rubber gasket 144.
[0036] A plastic shell injection molding process for an audio system. When the audio system shell is injection molded, the injection hydraulic cylinder is first started, and the movable mold 132 is driven to move rightward to approach the fixed mold 131 through the movable end thereof, and the adjustment hydraulic cylinder drives the adjustment rod 16 to move synchronously with the movable mold 132 until the movable mold 132 and the fixed mold 131 are closed, and then the injection extruder 11 injects into the mold cavity 133 through the injection port 134 until the product inside the mold cavity 133 is cooled and shaped; after the product is cooled and shaped, the injection hydraulic cylinder is started, and the movable end thereof drives the movable mold 132 to move leftward to separate from the fixed mold 131, and the adjustment hydraulic cylinder drives the adjustment rod 16 to move synchronously with the movable mold 132 until the movable mold 132 separates from the fixed mold 13 At 1, the adjustment hydraulic cylinder stops, and the injection hydraulic cylinder continues to drive the movable mold 132 to move to the left. At this time, the adjustment rod 16 extends out, and then the ejection hydraulic cylinder starts to drive the ejector rod 142 to move to the left to push out the molded product. When the product moves out of the mold cavity 133, the upper side of the product will contact the adjustment rod 16, causing the molded product to begin to tilt, and then be transported downward along the ramp 143; the upper left side of the molded product transported along the ramp 143 will collide with the adjustment soft brush 162 and squeeze the adjustment soft brush 162. At this time, the right side of the molded product is out of the ramp 143, and finally the molded product is transported downward by gravity, so that the molded products are stacked in the collection chamber 14, and the molding and collection of the products are completed.
[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. An injection molding device for a plastic housing of an audio system, comprising a body, an injection molding extruder, a chassis and a mold, characterized in that: The injection molding extruder is mounted on the right side of the upper end of the fuselage, the chassis is fixedly mounted on the left side of the upper end of the fuselage, the mold is composed of a fixed mold and a movable mold, the fixed mold is provided with a mold cavity, the mold cavity is provided with an injection port connected to the injection molding extruder, the fixed mold is fixedly mounted in the middle of the upper end of the fuselage, the movable mold is slidably mounted on the upper end of the fuselage, the fuselage is equipped with a driving mechanism, and a collecting cavity is opened on the left side of the fuselage; The driving mechanism comprises an injection hydraulic cylinder and an ejection hydraulic cylinder, wherein the injection hydraulic cylinder is fixedly assembled inside the chassis, the movable end of the injection hydraulic cylinder is fixedly connected to the movable mold, the ejection hydraulic cylinder is fixedly assembled at the right end of the fixed mold, the movable end of the ejection hydraulic cylinder is fixedly assembled with an ejector rod, and the ejector rod is sealed and slidably assembled on the right side of the fixed mold; An inclined channel is provided on the right side of the upper end of the collecting chamber, and rubber gaskets are installed on both the left and right sides of the collecting chamber.
2. The device for injection molding a plastic housing of a speaker according to claim 1, characterized in that: There are four ejection hydraulic cylinders, which are fixedly assembled at the right end of the fixed mold and evenly distributed at the four corners of the right end of the fixed mold.
3. The device for injection molding a plastic housing of an acoustic instrument according to claim 1, characterized in that: The chassis is slidably mounted with a plurality of positioning rods, and the right ends of the plurality of positioning rods are fixedly connected to the movable mold.
4. The device for injection molding a plastic housing of an acoustic instrument according to claim 1, characterized in that: The upper side of the fuselage is also equipped with an adjustment mechanism, which includes two adjustment hydraulic cylinders, both of which are fixedly installed inside the chassis, and the movable end of the adjustment hydraulic cylinder is fixedly equipped with an adjustment rod, and the adjustment rod is sealed and slidably connected to the movable mold left and right, and a guide tube is fixedly provided at the left end of the movable mold, and the adjustment rod is slidably connected to the guide tube left and right, and the guide tube is matched with the chassis for left and right sliding, and an adjustment soft brush is fixedly provided on the upper side of the left end of the collecting chamber.
5. The device for injection molding a plastic housing of a speaker according to claim 4, characterized in that: The upper and lower sides of the rubber gasket are respectively an inclined end and a vertical end. A C-shaped spring piece is fixedly provided at the connection between the inclined end and the vertical end of the rubber gasket, and the other end of the C-shaped spring piece is fixedly connected to the collection chamber.
6. The device for injection molding a plastic housing of a speaker according to claim 1, characterized in that: The front and rear sides of the fuselage are both equipped with slide rails, and the left and right ends of the lower side of the movable mold are fixedly equipped with sliders, and the sliders are slidably assembled to the upper side of the slide rails.
7. A sound plastic shell injection molding process, based on a sound plastic shell injection molding device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: The injection hydraulic cylinder starts, and drives the movable mold to move rightward to the fixed mold through its movable end. At the same time, the adjustment hydraulic cylinder drives the adjustment rod to move synchronously with the movable mold until the movable mold and the fixed mold are closed. Then the injection extruder injects into the mold cavity through the injection port until the product inside the mold cavity is cooled and shaped. S2: After the product is cooled and shaped, the injection hydraulic cylinder starts, and its moving end drives the movable mold to move to the left and away from the fixed mold. At the same time, the adjustment hydraulic cylinder drives the adjustment rod to move synchronously with the movable mold until the movable mold is separated from the fixed mold. The adjustment hydraulic cylinder stops, and the injection hydraulic cylinder continues to drive the movable mold to move to the left. At this time, the adjustment rod extends out, and then the ejection hydraulic cylinder starts to drive the ejector rod to move to the left to push out the molded product. When the product moves away from the mold cavity, the upper side of the product will contact the adjustment rod, causing the molded product to begin to tilt, and then be transported down along the ramp; S3: The upper left side of the molded product conveyed along the ramp will collide with and squeeze the adjustment soft brush. At this time, the right side of the molded product will leave the ramp. Finally, the molded product is conveyed downward by gravity, so that the molded products are stacked in the collection chamber, and the molding and collection of the products are completed.