Multi-station injection molding machine for plastic parts of automobile air conditioner

Abstract

The utility model discloses a kind of automobile air conditioner plastic piece multi-station injection molding machine, including forming table, the forming table top is provided with injection molding station, cooling station and detection station along counterclockwise direction, the center of forming table top is equipped with feeding mechanism, including: feeding assembly, including rotation table that is rotationally installed in the center of forming table top, the utility model relates to the technical field of automobile plastic piece injection molding. The automobile air conditioner plastic piece multi-station injection molding machine, by integrating injection molding station, cooling station, detection station, and design center feeding mechanism realizes automation flow, the rotation table of feeding assembly drives lower mould plate 90 ° intermittent rotation between each station, driving assembly is positioned by driving block and sliding groove cooperation and positioning block locking to ensure accurate alignment, saves transfer link, avoid workpiece damage caused by artificial contact, realize continuous production, improve process coherence and product integrity.

Description

Technical Field

[0001] This utility model relates to the field of automotive plastic parts injection molding technology, specifically a multi-station injection molding machine for automotive air conditioning plastic parts. Background Technology

[0002] The reference patent title is: An Injection Molding Machine for Producing Plastic Parts for Automotive Interiors (Authorization Announcement No.: CN217993385U, Authorization Announcement Date: 2022.12.09). It includes a base and a top plate. Electric telescopic rods are fixedly connected to both sides of the top of the base. A hollow cavity is formed inside the lower mold base. A piston block is slidably connected to the inner side of the vertical groove. A push rod is fixedly connected to the top of the piston block. The bottom of the demolding plate is connected to the push rod. Air inlet pipes communicating with the hollow cavity are connected to both sides of the lower mold base. Horizontal pipes are fixedly connected to both sides of the bottom of the top plate. Piston tubes are connected at equal intervals to the bottom of the horizontal pipes. A piston rod is slidably connected to the inner side of the piston tube. After the plastic part is molded, as the upper mold base rises, the piston rod squeezes the air in the horizontal pipe, allowing the air to enter the hollow cavity and drive the push rod to push, thus facilitating demolding of the plastic part in the lower mold base.

[0003] Based on the above-mentioned documents: In the existing injection molding production of automotive air conditioning parts, the dispersed processes lead to low production efficiency and easy damage to the products. Traditional processes separate injection molding, cooling, and testing into independent equipment, requiring manual or simple robotic arms to transfer the workpieces. This not only increases the waiting time between processes, but also makes the workpieces prone to bumps, scratches, or deformation due to contact with equipment and tools during transfer, affecting the product's appearance and dimensional accuracy. Such damage is especially common for thin-walled and irregularly shaped automotive air conditioning plastic parts. Therefore, this utility model provides a multi-station injection molding machine for automotive air conditioning plastic parts. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-station injection molding machine for automotive air conditioning plastic parts, which solves the problems of dispersed processes, low efficiency, and high scrap rate in the production of existing automotive air conditioning plastic parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-station injection molding machine for automotive air conditioning plastic parts, comprising a molding table, wherein the top of the molding table is provided with an injection station, a cooling station, and an inspection station arranged counterclockwise, and a feeding mechanism is provided at the center of the top of the molding table, the feeding mechanism comprising: The feeding assembly includes a rotary table rotatably mounted at the center of the top of the forming table. The rotary table has symmetrical connecting plates fixedly connected to its four sides. A lower template is fixedly connected to the top of the connecting plates by bolts. A rotating disk is fixedly connected to the bottom of the rotary table by a connecting shaft. A positioning plate is fixedly connected to the bottom of the rotating disk. A sliding groove is provided on the bottom of the rotating disk. The drive assembly, located at the bottom of the forming table, is used to drive the rotating disk to rotate intermittently by 90°. The ejector assembly, located at the bottom of the connecting plate, is used to discharge the molded plastic parts.

[0006] Preferably, the drive assembly includes a drive motor installed at the bottom of the forming table. One end of the output shaft of the drive motor is fixedly connected to a drive rod via a coupling. One end of the drive rod is fixedly connected to a drive block. The surface of the drive block is slidably connected to the inner surface of the sliding groove. The other end of the drive rod is fixedly connected to a positioning block. The arc-shaped surface of the positioning block is in close contact with the arc-shaped surface of the positioning plate.

[0007] Preferably, the ejection assembly includes an electric push rod installed at the bottom of the connecting plate, the output end of which is fixedly connected to an ejection rod, and one end of the ejection rod slides through into the interior of the lower template.

[0008] Preferably, the injection molding station includes a support plate installed on the top left side of the molding table. A lifting cylinder is fixedly connected to the top of the support plate, and a bearing plate is fixedly connected to the output end of the lifting cylinder. An upper template is fixedly connected to the bottom of the bearing plate by bolts. An injection port is provided on one side of the upper template for connecting to an external injection molding machine.

[0009] Preferably, the cooling station includes a vertical plate installed on the front side of the top of the forming table, a cooling motor is fixedly connected to one side of the vertical plate, and a cooling fan is fixedly connected to one end of the output shaft of the cooling motor via a coupling.

[0010] Preferably, the inspection station includes a device plate installed on the top right side of the forming table, an industrial camera is fixedly connected to the bottom of the device plate, and a warning light is provided on the top of the device plate.

[0011] This utility model provides a multi-station injection molding machine for automotive air conditioning plastic parts. Compared with the prior art, it has the following advantages: 1. This multi-station injection molding machine for automotive air conditioning plastic parts integrates injection molding, cooling, and inspection stations, and features a central feeding mechanism to achieve automated flow. The rotating table of the feeding component drives the lower template to rotate intermittently at 90° between stations. The drive component ensures precise alignment through the cooperation of the drive block and sliding groove, as well as the locking of the positioning block. This eliminates the transfer link, avoids workpiece damage caused by manual contact, achieves continuous production, and improves process continuity and product integrity.

[0012] 2. This multi-station injection molding machine for automotive air conditioning plastic parts features bolt-fixed upper and lower mold plates, allowing for quick mold changes to adapt to different plastic parts. An industrial camera with warning lights at the inspection station replaces manual visual inspection, while a directional fan at the cooling station accelerates molding and curing. This solves the problems of uneven cooling and delayed inspection in traditional systems, improving equipment adaptability and product quality stability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the external structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the ejection assembly of this utility model; Figure 3 This is a cross-sectional view of the internal structure of the molding table of this utility model; Figure 4 This is a three-dimensional schematic diagram of the feeding component of this utility model; Figure 5 This is a three-dimensional schematic diagram of the injection molding station of this utility model.

[0014] In the diagram: 1-Molding table, 2-Injection molding station, 21-Support plate, 22-Lifting cylinder, 23-Bearing plate, 24-Upper template, 3-Cooling station, 31-Upright plate, 32-Cooling motor, 33-Cooling fan, 4-Inspection station, 41-Equipment plate, 42-Industrial camera, 43-Warning light, 5-Feeding mechanism, 51-Feeding assembly, 511-Rotating table, 512-Connecting plate, 513-Lower template, 514-Rotating disk, 515-Positioning plate, 516-Sliding groove, 52-Drive assembly, 521-Drive motor, 522-Drive rod, 523-Drive block, 524-Positioning block, 53-Ejection assembly, 531-Electric push rod, 532-Ejection rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 This utility model provides a technical solution: A multi-station injection molding machine for automotive air conditioning plastic parts includes a molding table 1. The top of the molding table 1 is arranged counter-clockwise with an injection station 2, a cooling station 3, and an inspection station 4. A feeding mechanism 5 is located at the center of the top of the molding table 1. The feeding mechanism 5 includes: The feeding assembly 51 includes a rotary table 511 rotatably mounted at the top center of the forming table 1. The four sides of the rotary table 511 are fixedly connected with symmetrical connecting plates 512. The top of the connecting plates 512 is fixedly connected with a lower template 513 by bolts. The bottom of the rotary table 511 is fixedly connected with a rotating disk 514 by a connecting shaft. The bottom of the rotating disk 514 is fixedly connected with a positioning plate 515. The bottom of the rotating disk 514 is provided with a sliding groove 516. The drive assembly 52 is located at the bottom of the forming table 1 and is used to drive the rotating disk 514 to rotate intermittently by 90°. Ejector assembly 53 is located at the bottom of connecting plate 512 and is used to realize the ejection operation of molded plastic parts.

[0017] A control panel is installed on the rear side of the molding station 1, i.e., in the direction of the material discharge station. The control panel is electrically connected to the injection station 2, cooling station 3, inspection station 4, drive assembly 52 and ejection assembly 53 respectively, and is used to control the start and stop of drive motor 521, electric push rod 531, lifting cylinder 22, cooling motor 32 and industrial camera 42. By integrating injection molding station 2, cooling station 3, and inspection station 4, and designing a central feeding mechanism 5, automated flow is achieved. The rotary table 511 of the feeding component 51 drives the lower template 513 to rotate intermittently at 90° between each station. The drive component 52 ensures precise alignment by cooperating with the sliding groove 516 through the drive block 523 and locking with the positioning block 524. This eliminates the transfer link, avoids workpiece damage caused by manual contact, realizes continuous production, and improves process continuity and product integrity.

[0018] In this embodiment, the drive assembly 52 includes a drive motor 521 installed at the bottom of the forming table 1. One end of the output shaft of the drive motor 521 is fixedly connected to a drive rod 522 via a coupling. One end of the drive rod 522 is fixedly connected to a drive block 523. The surface of the drive block 523 is slidably connected to the inner surface of the sliding groove 516. The other end of the drive rod 522 is fixedly connected to a positioning block 524. The arc-shaped surface of the positioning block 524 is tightly fitted to the arc-shaped surface of the positioning plate 515.

[0019] Drive motor 521 is a three-phase asynchronous motor; In this embodiment, the ejection assembly 53 includes an electric push rod 531 installed at the bottom of the connecting plate 512. The output end of the electric push rod 531 is fixedly connected to an ejection rod 532, and one end of the ejection rod 532 slides through into the interior of the lower template 513.

[0020] The ejector rod 532 slides inside the connecting plate 512 and is adapted to the slot opened at the bottom of the lower template 513; In this embodiment, the injection molding station 2 includes a support plate 21 installed on the top left side of the molding table 1. A lifting cylinder 22 is fixedly connected to the top of the support plate 21. A bearing plate 23 is fixedly connected to the output end of the lifting cylinder 22. An upper template 24 is fixedly connected to the bottom of the bearing plate 23 by bolts. An injection port is provided on one side of the upper template 24 for connecting to an external injection molding machine.

[0021] In this embodiment, the cooling station 3 includes a vertical plate 31 installed on the front side of the top of the forming table 1. A cooling motor 32 is fixedly connected to one side of the vertical plate 31, and a cooling fan 33 is fixedly connected to one end of the output shaft of the cooling motor 32 through a coupling.

[0022] Cooling motor 32 is a three-phase asynchronous motor; In this embodiment, the inspection station 4 includes an equipment plate 41 installed on the top right side of the forming table 1. An industrial camera 42 is fixedly connected to the bottom of the equipment plate 41, and a warning light 43 is provided on the top of the equipment plate 41.

[0023] The industrial camera 42 uses a 5-megapixel CCD camera and connects to an industrial computer via gigabit Ethernet. The warning light 43 has two lights, one green and one red. When the green light is on, it means that the surface of the workpiece has passed the inspection, and when the red light is on, it means that the surface of the workpiece has failed the inspection. The upper template 24 and the lower template 513 are fixed with bolts, allowing for quick mold replacement to adapt to different plastic parts. The industrial camera 42 at the inspection station 4, along with the warning light 43, replaces manual visual inspection. The directional fan at the cooling station 3 accelerates molding and curing, solving the problems of uneven cooling and delayed inspection in traditional systems, and improving equipment adaptability and product quality stability.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] During operation, firstly, by starting the lifting cylinder 22, the upper template 24 is lowered to close with the corresponding lower template 513. Then, the external injection molding machine is started to inject molten plastic into the cavity of the lower template 513 through the injection port. After pressure is maintained and the molding is completed, the lifting cylinder 22 retracts and the upper template 24 is reset. Subsequently, the drive motor 521 in the drive assembly 52 is started to drive the drive rod 522 to rotate. The rotation of the drive rod 522 will cause the drive block 523 at one end to slide on the inner surface of the sliding groove 516. As the drive block 523 slides, it will drive the rotating disk 514, the rotating table 511, the connecting plate 512 and the lower template 513 to rotate synchronously. When the drive rod 522 rotates one revolution, it will drive the rotating disk 514, the rotating table 511, the connecting plate 512 and the lower template 513 to rotate 90° synchronously. At this time, the arc surface of the positioning block 524 at the other end of the drive rod 522 is in close contact with the arc surface of the positioning plate 515, so that the rotating disk 514 is self-locked and limited by the positioning block 524 and the positioning plate 515. After the rotating table 511 rotates 90°, the injection-molded workpiece is rotated to the cooling station 3 with the lower template 513. At this time, by starting the cooling motor 32 to drive the cooling fan 33 to rotate, a directional airflow is generated and blown toward the workpiece to accelerate the curing and shaping of the plastic; After the second set of injection molded parts is completed, the drive motor 521 will continue to drive the rotary table 511 to rotate. At this time, the second set of lower mold plate 513 and injection molded parts rotate to the cooling station 3, while the first set of cooled lower mold plate 513 and injection molded parts rotate to the inspection station 4. The injection molded part is located below the industrial camera 42. The industrial camera 42 collects images of the workpiece and compares them with preset standard parameters. If the inspection is qualified, the warning light turns green; if it is unqualified, the warning light turns red. Synchronously, as the rotary table 511 continues to rotate, the inspected workpiece rotates to the rear of the forming table 1. At this time, the electric push rod 531 in the ejection assembly 53 is activated through the control panel. The output end of the electric push rod 531 drives the ejection rod 532 upward through the lower template 513 to eject the workpiece and complete one production cycle. Throughout the process, the drive assembly 52, through the cooperation of the drive block 523 and the sliding groove 516, enables the rotary table to rotate intermittently by 90°. The positioning block 524 fits into the groove of the positioning plate 515 to ensure that the lower template 513 is accurately aligned with each station after each rotation, thus ensuring the stability of the process.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station injection molding machine for automotive air conditioning plastic parts, comprising a molding table (1), characterized in that: The molding platform (1) has an injection station (2), a cooling station (3), and an inspection station (4) arranged counterclockwise on its top. A feeding mechanism (5) is provided at the center of the top of the molding platform (1). The feeding mechanism (5) includes: The feeding assembly (51) includes a rotating table (511) rotatably mounted at the top center of the forming table (1). The four sides of the rotating table (511) are fixedly connected with symmetrical connecting plates (512). The top of the connecting plate (512) is fixedly connected with a lower template (513) by bolts. The bottom of the rotating table (511) is fixedly connected with a rotating disk (514) by a connecting shaft. The bottom of the rotating disk (514) is fixedly connected with a positioning plate (515). The bottom of the rotating disk (514) is provided with a sliding groove (516). The drive assembly (52) is located at the bottom of the forming table (1) and is used to drive the rotating disk (514) to rotate intermittently by 90°. The ejector assembly (53) is located at the bottom of the connecting plate (512) and is used to realize the ejection operation of the molded plastic parts.

2. The multi-station injection molding machine for automotive air conditioning plastic parts according to claim 1, characterized in that: The drive assembly (52) includes a drive motor (521) installed at the bottom of the forming table (1). One end of the output shaft of the drive motor (521) is fixedly connected to a drive rod (522) via a coupling. One end of the drive rod (522) is fixedly connected to a drive block (523). The surface of the drive block (523) is slidably connected to the inner surface of the sliding groove (516). The other end of the drive rod (522) is fixedly connected to a positioning block (524). The arc surface of the positioning block (524) is tightly fitted to the arc surface of the positioning plate (515).

3. The multi-station injection molding machine for automotive air conditioning plastic parts according to claim 1, characterized in that: The ejector assembly (53) includes an electric push rod (531) installed at the bottom of the connecting plate (512). The output end of the electric push rod (531) is fixedly connected to an ejector rod (532). One end of the ejector rod (532) slides through into the interior of the lower template (513).

4. The multi-station injection molding machine for automotive air conditioning plastic parts according to claim 1, characterized in that: The injection molding station (2) includes a support plate (21) installed on the top left side of the molding table (1). A lifting cylinder (22) is fixedly connected to the top of the support plate (21). A bearing plate (23) is fixedly connected to the output end of the lifting cylinder (22). An upper template (24) is fixedly connected to the bottom of the bearing plate (23) by bolts. An injection port is provided on one side of the upper template (24) for connecting to an external injection molding machine.

5. The multi-station injection molding machine for automotive air conditioning plastic parts according to claim 1, characterized in that: The cooling station (3) includes a vertical plate (31) installed on the front side of the top of the forming table (1). A cooling motor (32) is fixedly connected to one side of the vertical plate (31). A cooling fan (33) is fixedly connected to one end of the output shaft of the cooling motor (32) through a coupling.

6. A multi-station injection molding machine for automotive air conditioning plastic parts according to claim 1, characterized in that: The inspection station (4) includes an equipment plate (41) installed on the top right side of the forming table (1). An industrial camera (42) is fixedly connected to the bottom of the equipment plate (41), and a warning light (43) is provided on the top of the equipment plate (41).

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