A mold stripping assembly and injection molding machine

Abstract

The utility model discloses a kind of ejection assembly and injection molding machine, it is related to injection molding technical field, the utility model includes rack and the movable die and fixed die being set in its inside, slidingly set with moving plate on movable die, moving plate is fixedly provided with several ejector rods, several through slots compatible with ejector rod are set on movable die, each ejector rod is slid in each through slot one to one corresponding;Anti-drop rod is fixedly set on the side wall of rack close to moving plate, through hole compatible with anti-drop rod is set on movable die and moving plate;The end of each ejector rod away from fixed die is fixedly provided with bolt, several thread grooves compatible with bolt are set on moving plate, by moving plate and movable die close to make ejector rod eject basin frame, realize demolding, prevent basin frame from falling directly from movable die when demolding by anti-drop rod, to prevent basin frame from falling and being damaged, simultaneously, bolt, thread groove can be conveniently installed and disassembled to push rod, and push rod is stably fixed on moving plate by positioning rod and positioning hole.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a mold release assembly and an injection molding machine. Background Technology

[0002] A loudspeaker (also known as a loudspeaker) is an electroacoustic transducer that converts electrical signals (electrical energy) into sound signals (sound energy). It is the core output component of audio playback systems (such as televisions and car stereos). Essentially, it generates sound waves by physically vibrating the air, which are ultimately perceived as sound by the human ear. It is widely used in daily life, entertainment, communication, and industry, and is a key device for achieving "sound output."

[0003] In the structure of a loudspeaker, the loudspeaker basket is the core structural component, equivalent to the "skeleton". It is responsible for fixing key components such as the diaphragm, voice coil, and magnetic circuit system, while also being able to withstand vibration and impact and ensure acoustic stability. There are two main types of loudspeaker baskets: metal baskets and plastic baskets.

[0004] Plastic speaker frames are mainly produced by injection molding, which includes injection molding, cooling and curing, and finally demolding. Some speaker frames are ejected from the mold by ejector pins. During ejection, workers need to be on standby next to the mold to catch the frame in time. However, in actual production, if the workers do not react in time and fail to catch the frame, it will fall directly off the mold, thus damaging the frame. Therefore, there is an urgent need for a demolding component that can eject the frame without causing it to fall directly off the mold. Utility Model Content

[0005] The purpose of this invention is to provide a mold release assembly and an injection molding machine to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold ejection assembly, comprising a frame and a moving mold and a fixed mold disposed therein, a movable plate slidably disposed on the moving mold, a plurality of ejector rods fixedly disposed on the movable plate, a plurality of through slots adapted to the ejector rods being opened on the moving mold, and each ejector rod sliding in a corresponding through slot; an anti-detachment rod, which is fixedly disposed on the side wall of the frame near the movable plate, and through holes adapted to the anti-detachment rod being opened on the moving mold and the movable plate.

[0007] Preferably, each of the ejector pins is fixedly provided with a bolt at the end away from the fixed mold, and the movable plate is provided with a number of threaded grooves that are compatible with the bolts.

[0008] Preferably, the movable plate has several positioning holes, and each of the top rods has a positioning rod slidably disposed on its outer peripheral surface.

[0009] Preferably, a magnetic block is fixedly provided at the end of each positioning rod near the moving plate.

[0010] Preferably, each of the top rods has a sliding ring at one end near the moving plate, and each of the sliding rings is fixedly connected to each positioning rod in a corresponding manner.

[0011] Preferably, multiple hydraulic cylinders are fixedly mounted on the movable plate.

[0012] An injection molding machine includes the aforementioned demolding assembly.

[0013] In the above technical solution, the present invention provides a demolding assembly and an injection molding machine, which has the following beneficial effects: by bringing the moving plate close to the moving mold, the ejector pin pushes out the tray frame to achieve demolding. During demolding, the anti-detachment rod prevents the tray frame from falling directly off the moving mold, thereby preventing the tray frame from falling and causing damage. At the same time, the bolts and threaded grooves facilitate the installation and disassembly of the ejector pin, and the positioning rod and positioning hole make the ejector pin stably fixed on the moving plate. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the moving mold provided in an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the anti-detachment rod provided in an embodiment of the present utility model;

[0018] Figure 4 A schematic diagram of the push rod provided in an embodiment of this utility model;

[0019] Figure 5 A schematic diagram of the positioning rod provided in an embodiment of this utility model;

[0020] Figure 6 Provided for the embodiments of this utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Frame; 2. Injection molding machine body; 3. Fixed mold; 4. Moving mold; 5. Hydraulic system; 6. Anti-detachment rod; 7. Moving plate; 8. Through groove; 9. Through hole; 10. Ejector rod; 11. Slide groove; 12. Moving ring; 13. Positioning rod; 14. Bolt; 15. Threaded groove; 16. Positioning hole; 17. Magnetic block; 18. Hydraulic cylinder. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Please see Figure 1-6 A mold ejection assembly, the technical solution proposed in this utility model, includes a frame 1 and a moving mold 4 and a fixed mold 3 disposed therein. A movable plate 7 is slidably disposed on the moving mold 4, and a plurality of ejector rods 10 are fixedly disposed on the movable plate 7. A plurality of through slots 8 adapted to the ejector rods 10 are opened on the moving mold 4, and each ejector rod 10 slides in a corresponding slot 8. An anti-detachment rod 6 is fixedly disposed on the side wall of the frame 1 near the movable plate 7. Through holes 9 adapted to the anti-detachment rod 6 are opened on the moving mold 4 and the movable plate 7. The fixed mold 3 is fixed in position within the frame 1, and the moving mold is fixed in position within the frame 1. 1. The sliding plate 7 is located on the side of the moving mold 4 away from the fixed mold 3. The moving mold 4 and the fixed mold 3 have cavities and cores for injection molding the speaker frame. Each through groove 8 is opened on the cavity of the moving mold 4. The anti-detachment rod 6 is fixedly installed on the side wall of the frame 1 near the moving plate 7. Since the speaker frame has a central mounting hole in the middle, the diameter of the through hole 9 is smaller than the central mounting hole of the frame. The core of the fixed mold 3 has a protrusion that matches the central mounting hole of the frame. The protrusion forms the central mounting hole of the frame during injection molding. This is existing technology and will not be elaborated further. When the moving mold 4 and the fixed mold 3 are joined... During injection molding, the ends of each ejector pin 10 are flush with the side of the cavity closest to the fixed mold 3, preventing plastic from entering the through slot 8 during injection. When the fixed mold 3 and the fixed mold 4 are closed together, the through hole 9 is blocked by the protrusion on the core, preventing plastic from entering the through hole 9. During demolding, the moving mold 4 moves away from the fixed mold 3, thus separating from it. The molded tray adheres to the cavity of the moving mold 4. During the movement of the moving mold 4, the moving plate 7 moves together, and then the anti-detachment rod 6 is inserted into the corresponding through hole 9. At this time, the anti-detachment rod 6 is also in the position of... In the center mounting hole of the basin frame, after moving to the designated position, the moving plate 7 remains stationary, and the moving mold 4 moves closer to the moving plate 7. At this time, each ejector rod 10 extends from the end face of the cavity, thereby ejecting the formed basin frame from the moving mold 4. When the basin frame is completely detached from the moving mold 4, it will fall onto the anti-detachment rod 6. The anti-detachment rod 6 will support the basin frame, so even if the staff does not collect it in time, the basin frame will not fall directly and cause damage. When collecting, the staff only needs to remove the basin frame from the anti-detachment rod 6. When the moving mold 4 moves closer to the fixed mold 3, the anti-detachment rod 6 will move out from the through hole 9.

[0025] Specifically, each ejector pin 10 is fixedly provided with a bolt 14 at the end away from the fixed mold 3, and the movable plate 7 is provided with several threaded grooves 15 that are compatible with the bolt 14; by the cooperation of the thread on the bolt 14 and the threaded groove 15, the ejector pin 10 can be easily installed and disassembled, thereby facilitating the replacement of the ejector pin 10, and also allowing the ejector pin 10 that is not needed to be removed according to the mold.

[0026] Specifically, the movable plate 7 has several positioning holes 16, and each push rod 10 has a positioning rod 13 slidably mounted on its outer circumferential surface. Each positioning hole 16 is located on the side of the threaded groove 15. When the bolt 14 on the push rod 10 is screwed into the threaded groove 15 and the end of the bolt 14 abuts against the bottom of the threaded groove 15, the positioning rod 13 on the push rod 10 is also aligned with the corresponding positioning hole 16. At this time, the positioning rod 13 is inserted into the positioning hole 16, which can prevent the screw from rotating and causing the push rod 10 to loosen or shift.

[0027] Specifically, each positioning rod 13 is fixedly provided with a magnetic block 17 at one end near the moving plate 7; the moving plate 7 is made of metal. When the positioning rod 13 is inserted into the corresponding positioning hole 16, it is attracted to the bottom of the positioning hole 16 by the magnetic block 17, thereby preventing the positioning rod 13 from easily moving out of the positioning hole 16, further strengthening the connection stability between the bolt 14 and the threaded groove 15, and preventing the top rod 10 from moving.

[0028] Specifically, each push rod 10 has a sliding ring 12 slidably installed at one end near the moving plate 7, and each sliding ring 12 is fixedly connected to each positioning rod 13 in a one-to-one correspondence; each push rod 10 has several sliding grooves 11 on its outer peripheral surface near the moving plate 7 for the sliding ring 12 to slide. In use, the positioning rod 13 is inserted into the positioning hole 16 by moving the sliding ring 12 to fix the push rod 10. When disassembling the push rod 10, the sliding ring 12 drives the positioning rod 13 to move out of the positioning hole 16, and then the push rod 10 is rotated to separate the push rod 10 from the moving plate 7.

[0029] Specifically, multiple hydraulic cylinders 18 are fixedly installed on the movable plate 7; there are four hydraulic cylinders 18 on the fixed plate, which are evenly distributed at the four corners of the movable plate 7. The moving end of each hydraulic cylinder 18 is fixedly connected to the moving mold 4. When the moving mold 4 and the movable plate 7 move to the designated position, the moving mold 4 moves closer to the movable plate 7 by activating each hydraulic cylinder 18, so that each ejector rod 10 extends from the moving mold 4 to eject the tray frame and realize demolding.

[0030] An injection molding machine includes the aforementioned demolding assembly; the injection molding machine body 2 is hydraulically disposed within a frame 1, and a hydraulic system 5 is also provided on the side of the frame 1 near the moving mold 4. The moving plate 7 is controlled by the hydraulic system 5 to move, thereby driving the moving mold 4 to move together, realizing the closing and separation of the moving mold 4 and the fixed mold 3. 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 knockout assembly comprising a frame (1) and a movable die (4) and a stationary die (3) arranged therein, characterized in that, A movable plate (7) is slidably arranged on the moving mold (4), and a number of push rods (10) are fixedly arranged on the movable plate (7). A number of through slots (8) adapted to the push rods (10) are opened on the moving mold (4), and each push rod (10) slides in each through slot (8) in a corresponding manner. The anti-detachment rod (6) is fixedly installed on the side wall of the frame (1) near the moving plate (7). The moving mold (4) and the moving plate (7) are provided with through holes (9) that are adapted to the anti-detachment rod (6).

2. A knockout assembly according to claim 1, wherein, Each of the top rods (10) is fixedly provided with a bolt (14) at the end away from the fixed mold (3), and the movable plate (7) is provided with a number of threaded grooves (15) that are compatible with the bolts (14).

3. The mold release assembly according to claim 1, characterized in that, The movable plate (7) has several positioning holes (16), and each of the top rods (10) has a positioning rod (13) slidably disposed on its outer peripheral surface.

4. A mold release assembly according to claim 3, characterized in that, Each of the positioning rods (13) has a magnetic block (17) fixedly installed at one end near the moving plate (7).

5. A mold release assembly according to claim 3, characterized in that, Each of the top rods (10) has a sliding ring (12) at one end near the moving plate (7), and each of the sliding rings (12) is fixedly connected to each of the positioning rods (13) in a one-to-one correspondence.

6. A mold release assembly according to claim 1, characterized in that, Multiple hydraulic cylinders (18) are fixedly installed on the movable plate (7).

7. An injection molding machine, characterized in that, Includes the mold release assembly as described in any one of claims 1-6.

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