An injection molding device for manufacturing a plastic product

Abstract

The utility model relates to a kind of injection molding devices for plastic product manufacturing, including base, lower mould is fixedly connected on the base, telescopic link is fixedly connected on the base, and the moving end of telescopic link is fixedly connected with top plate;Upper mould and delivery pipe are fixedly connected on the bottom of top plate;The one end of base is fixedly connected with link rod, electric guide rail is fixedly connected on the link rod, and sliding block is slidably connected on the electric guide rail;First electric push rod is fixedly connected on the top of sliding block.The injection molding device for plastic product manufacturing is automatically polished to upper mould bottom by polishing plate, removes residue or burr, while suction cavity passes through connecting pipe and sucks the debris generated by polishing to external filtering device, keeps mould clean, and polishing debris is immediately sucked and filtered, reduces dust pollution.

Description

Technical Field

[0001] This utility model relates to the field of plastic product manufacturing technology, specifically to an injection molding device for manufacturing plastic products. Background Technology

[0002] Patent CN223302107U discloses an injection molding device for easy part removal, including a base plate, an upper mold located above the top of the base plate, and a lower mold located between the upper mold and the base plate. The base plate includes support rods set at the four corners of the top of the base plate, and an upper molding groove is provided at the bottom of the interior of the upper mold. An injection pipe is provided at the middle position of the top of the upper mold, and mounting blocks are provided at the middle positions of the bottom of both sides of the upper mold.

[0003] In the prior art, as the lower mold moves downward, the bottom of the push plate abuts against the top of the base plate, and the ejector plate pushes the molded part out of the lower molding groove. In addition, the injection molding equipment usually needs to spray release liquid on the lower mold during the injection process to facilitate the demolding of subsequent products. The above-mentioned prior art cannot perform injection pretreatment on the upper and lower molds of the injection molding device.

[0004] Therefore, an injection molding apparatus for manufacturing plastic products is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an injection molding apparatus for manufacturing plastic products, which can solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a base, on which a lower mold is fixedly connected, and a telescopic rod is fixedly connected, with the moving end of the telescopic rod fixedly connected to a top plate; an upper mold and a conveying pipe are fixedly connected to the bottom of the top plate; a connecting rod is fixedly connected to one end of the base, and an electric guide rail is fixedly connected to the connecting rod, with a slider slidably connected to the electric guide rail; a first electric push rod is fixedly connected to the top of the slider, and a limiting plate is slidably connected to the top of the slider; the limiting plate is fixedly connected to a suction frame, and the side wall of the limiting plate is fixedly connected to the telescopic end of the first electric push rod; a third electric push rod is fixedly connected to the top of the suction frame, and the moving end of the third electric push rod drives a piston plate to slide within the suction frame; multiple sets of nozzles are equidistantly arranged at the bottom of the suction frame.

[0007] Preferably, the bottom of the top plate is fixedly connected to a threaded sleeve, the threaded sleeve is internally threaded with a screw, the screw is fixedly connected to the output shaft of the drive motor, and the bottom of the drive motor is bolted to the base.

[0008] Preferably, a second electric push rod is bolted to the top of the suction frame, and the moving end of the second electric push rod is fixedly connected to the grinding plate.

[0009] Preferably, the grinding plate has a hollowed-out suction cavity, and the top of the suction cavity has multiple sets of through holes penetrating the grinding plate.

[0010] Preferably, the length of the suction frame matches the length of the injection groove in the lower mold.

[0011] Preferably, the grinding plate and the side wall of the suction frame are both connected by a connecting pipe.

[0012] Compared with the prior art, the present invention provides an injection molding apparatus for manufacturing plastic products, which has the following beneficial effects: 1. This injection molding device for manufacturing plastic products controls the piston plate through an electric push rod, which sprays the release liquid evenly onto the surface of the lower mold through a nozzle. At the same time, the reciprocating movement of the suction frame ensures that the entire mold area is covered, effectively preventing the product from sticking to the mold and improving the success rate of demolding.

[0013] 2. The injection molding device for manufacturing plastic products automatically grinds the bottom of the upper mold with a grinding plate to remove residues or burrs. At the same time, the suction chamber sucks the grinding debris to the external filter device through the connecting pipe to keep the mold clean. The grinding debris is immediately sucked in and filtered, reducing dust pollution.

[0014] 3. The injection molding device for manufacturing plastic products can quickly move the suction frame and grinding plate to the working position through electric guide rails and sliders, achieving seamless connection of multiple processes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the internal structure of the suction frame of this utility model.

[0016] In the diagram: 1. Base; 2. Lower mold; 3. Telescopic rod; 4. Drive motor; 5. Screw; 6. Threaded sleeve; 7. Top plate; 8. Conveying pipe; 9. Upper mold; 10. Connecting rod; 11. Electric guide rail; 12. Slider; 13. First electric push rod; 14. Limiting plate; 15. Suction frame; 16. Second electric push rod; 17. Grinding plate; 18. Third electric push rod; 19. Piston plate; 20. Nozzle; 21. Suction chamber; 22. Connecting pipe. Detailed Implementation

[0017] 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.

[0018] Example: Please see Figure 1 - Figure 4 This embodiment of an injection molding apparatus for manufacturing plastic products includes a base 1, a lower mold 2 fixedly connected to the base 1, a telescopic rod 3 fixedly connected to the base 1, a movable end of the telescopic rod 3 fixedly connected to a top plate 7, a threaded sleeve 6 fixedly connected to the bottom of the top plate 7, a screw 5 internally threadedly connected to the threaded sleeve 6, the screw 5 fixedly connected to the output shaft of a drive motor 4, and the bottom of the drive motor 4 bolted to the base 1; the screw 5 drives the top plate 7 to move through the threaded sleeve 6, and the top plate 7 drives the upper mold 9 connected below to move. The top plate 7 is fixedly connected to the upper mold 9 and the conveying pipe 8 at the bottom. When the lower mold 2 and the upper mold 9 are closed, the external injection liquid is transported to the lower mold 2 through the conveying pipe 8. Among them, a connecting rod 10 is fixedly connected to one end of the base 1, an electric guide rail 11 is fixedly connected to the connecting rod 10, and a slider 12 is slidably connected to the electric guide rail 11. The top of the slider 12 is fixedly connected to the first electric push rod 13, and the top of the slider 12 is slidably connected to the limiting plate 14. The limiting plate 14 is fixedly connected to the suction frame 15, and the side wall of the limiting plate 14 is fixedly connected to the telescopic end of the first electric push rod 13. The length of the suction frame 15 matches the length of the injection groove in the lower mold 2; Specifically, a second electric push rod 16 is bolted to the top of the suction frame 15. The moving end of the second electric push rod 16 is fixedly connected to the grinding plate 17. The grinding plate 17 has a hollowed-out suction cavity 21. The top of the suction cavity 21 is provided with multiple sets of through holes penetrating the grinding plate 17. Specifically, a third electric push rod 18 is fixedly connected to the top of the suction frame 15. The moving end of the third electric push rod 18 drives the piston plate 19 to slide and connect with the suction frame 15. Multiple sets of nozzles 20 are provided at equal intervals at the bottom of the suction frame 15. Specifically, a connecting pipe 22 is connected to both the grinding plate 17 and the side wall of the suction frame 15. The connecting pipe 22 on the suction frame 15 is used to transport the demolding liquid, and the connecting pipe 22 on the grinding plate 17 is used to connect to an external suction device, and a filter device is connected to the suction device.

[0019] The working principle of the above embodiments is as follows: In use, the drive motor 4 drives the screw 5 to rotate, the screw 5 drives the threaded sleeve 6 to move downward, the threaded sleeve 6 drives the upper mold 9 to move downward, after the upper mold 9 and the lower mold 2 are closed, the injection liquid is then transported to the space between the upper mold 9 and the lower mold 2 through the delivery pipe 8. After the injection is completed, the upper mold 9 is controlled to move upward to transfer the injection molded product. Then, control the slider 12 to move the suction frame 15 to the top of the lower mold 2, and then control the third electric push rod 18 to move the piston plate 19 downward. The piston plate 19 squeezes the demolding liquid below and transmits it downward through the nozzle 20. At the same time, control the first electric push rod 13 to move the suction frame 15 back and forth so that the demolding liquid can be sprayed evenly onto the surface of the lower mold 2. Simultaneously, the second electric push rod 16 is controlled to drive the grinding plate 17 to move upward and contact the bottom of the upper mold 9. The grinding plate 17 can grind the bottom of the upper mold 9, and then the grinding debris generated is sucked into the suction chamber 21 through the suction chamber 21, and then transferred to the external filter device through the connecting pipe 22, and then carried out the next injection molding operation.

[0020] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0021] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] 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. An injection molding apparatus for manufacturing plastic products, comprising a base (1), a lower mold (2) fixedly connected to the base (1), a telescopic rod (3) fixedly connected to the base (1), and a movable end of the telescopic rod (3) fixedly connected to a top plate (7); Its features are: The top plate (7) is fixedly connected to the bottom of the upper mold (9) and the conveying pipe (8); One end of the base (1) is fixedly connected to a connecting rod (10), an electric guide rail (11) is fixedly connected to the connecting rod (10), and a slider (12) is slidably connected to the electric guide rail (11). The top of the slider (12) is fixedly connected to a first electric push rod (13), and the top of the slider (12) is slidably connected to a limiting plate (14). The limiting plate (14) is fixedly connected to the suction frame (15), and the side wall of the limiting plate (14) is fixedly connected to the telescopic end of the first electric push rod (13). The top of the suction frame (15) is fixedly connected to a third electric push rod (18), and the moving end of the third electric push rod (18) drives the piston plate (19) to slide in the suction frame (15). The bottom of the suction frame (15) is provided with multiple sets of nozzles (20) at equal intervals.

2. The injection molding apparatus for manufacturing plastic products according to claim 1, characterized in that: The bottom of the top plate (7) is fixedly connected to the threaded sleeve (6), and the threaded sleeve (6) is internally threaded with a screw (5). The screw (5) is fixedly connected to the output shaft of the drive motor (4), and the bottom of the drive motor (4) is bolted to the base (1).

3. The injection molding apparatus for manufacturing plastic products according to claim 2, characterized in that: The top of the suction frame (15) is bolted with a second electric push rod (16), and the moving end of the second electric push rod (16) is fixedly connected to the grinding plate (17).

4. The injection molding apparatus for manufacturing plastic products according to claim 3, characterized in that: The grinding plate (17) has a hollowed-out suction cavity (21), and the top of the suction cavity (21) has multiple through holes that penetrate the grinding plate (17).

5. The injection molding apparatus for manufacturing plastic products according to claim 4, characterized in that: The length of the suction frame (15) matches the length of the injection groove in the lower mold (2).

6. The injection molding apparatus for manufacturing plastic products according to claim 5, characterized in that: The grinding plate (17) and the side wall of the suction frame (15) are both connected by a connecting pipe (22).

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