Electronic product casing manufacturing method

By combining air blowing and vibration mechanisms, the problems of negative pressure and cooling during demolding of electronic product casings are solved, achieving an efficient and damage-free demolding process.

CN119305133BActive Publication Date: 2025-11-14DONGGUAN YIFANG TECHNOLOGY CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202411611245.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-11-14
Estimated Expiration
2044-11-12

AI Technical Summary

Technical Problem

Existing electronic product casing manufacturing methods often result in negative pressure between the casing and the mold core during demolding, leading to inconvenience in ejection and potential damage to the casing. Furthermore, the slow cooling rate affects demolding efficiency and effectiveness.

Method used

The system employs a combination of air blowing and vibration mechanisms. The air blowing mechanism blows cooling air between the outer shell and the male mold core during demolding to avoid negative pressure, while the vibration mechanism taps the side wall of the male mold core to improve demolding efficiency and effectiveness.

Benefits of technology

It achieves effective separation between the outer shell and the male mold core, avoids negative pressure damage, and improves demolding efficiency and effect through cooling and vibration.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119305133B_ABST
    Figure CN119305133B_ABST
Patent Text Reader

Abstract

This invention relates to the field of electronic product casing processing technology, specifically to a method for manufacturing electronic product casings. The method includes a die and a punch. The die includes a female mold core, and the punch includes a male mold core. The male mold core has two symmetrically arranged first through holes on its sidewall, and ejector pins are inserted into the first through holes. A movable plate is fitted onto the sidewall of the ejector pin, and a telescopic mechanism is provided between the movable plate and the ejector pin. The male mold core has a second through hole on its sidewall, and a movable rod is inserted into the second through hole. The advantages of this invention are: this method allows cooling air to be automatically blown out through the second through hole in the sidewall of the male mold core during demolding, preventing negative pressure between the casing and the male mold core. Simultaneously, it cools the casing and reciprocates by striking and vibrating the sidewall of the punch, resulting in higher demolding efficiency and better performance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of electronic product casing processing technology, specifically to a method for manufacturing electronic product casings. Background Technology

[0002] Electronic product casings protect internal circuit boards and components from environmental damage such as dust, moisture, and scratches. The casing provides a fixed position and support structure for the various components, ensuring that components do not shift or deform during transportation and use. Typically, electronic product casings are made of plastic, offering advantages such as high strength and long service life. During processing, they are injection molded, and after injection molding, the casing needs to be demolded.

[0003] For example, the electronic product casing manufacturing method with patent number CN103702529B relates to an electronic product casing manufacturing method, specifically disclosing a method for injection molding of electronic product casings.

[0004] However, existing electronic product casing manufacturing methods mostly rely on ejector pins on the mold to eject the molded casing. However, this method can easily create negative pressure between the casing and the mold core during demolding, making ejection inconvenient and slow. It may also damage the casing. Furthermore, the casing cools down slowly after molding, and may not be fully cooled before ejection, potentially causing it to stick to the mold core. This can also damage the casing during ejection, thus affecting the efficiency and effectiveness of casing demolding. Summary of the Invention

[0005] This invention addresses the technical problems existing in the prior art by providing a method for manufacturing electronic product casings. In most existing electronic product casing manufacturing methods, ejector pins on the mold are used to push the formed casing out of the mold. However, this method easily creates negative pressure between the casing and the mold core during demolding, making ejection inconvenient and slow, and potentially damaging the casing. Furthermore, the casing cools slowly after molding, and may not be fully cooled before ejection, potentially causing adhesion between it and the mold core, which can also damage the casing during ejection. Therefore, this method affects the efficiency and effectiveness of casing demolding.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A method for manufacturing an electronic product casing includes a concave mold and a convex mold. The concave mold includes a female mold core, and the convex mold includes a male mold core. The side wall of the male mold core has two symmetrically arranged first through holes, and an ejector pin is inserted into the first through hole. The side wall of the ejector pin is fitted with a movable plate, and a telescopic mechanism is provided between the movable plate and the ejector pin. The side wall of the male mold core has a second through hole, and a movable rod is inserted into the second through hole. The movement of the movable plate is driven by a first pushing mechanism, and the movement of the movable rod is driven by a second pushing mechanism. The side wall of the convex mold is provided with an air blowing mechanism for driving the second through hole to blow air, and the side wall of the convex mold is provided with a vibration mechanism for striking and vibrating it.

[0007] The beneficial effects of this invention are:

[0008] 1) By setting up an air blowing mechanism, when demolding is required after the electronic product casing is formed, the punch is moved away from the die. At this time, the electronic product casing is fitted onto the side wall of the male mold core. Then, the first electromagnet is energized. After the first electromagnet is energized, it attracts the magnet, causing the moving plate to move closer to the punch. When the moving plate moves, the first spring is gradually compressed, which gradually increases the squeezing force between the moving rod and the casing. At the same time, the movement of the moving plate drives the synchronous movement of the connecting plate, and pushes the piston into the air storage cylinder through the second spring, so that the piston exerts pressure on the storage cylinder. The cooling gas inside the air cylinder is compressed, and the movement of the moving plate drives the movement of the second rack. The movement of the second rack causes the gear to rotate, which in turn causes the first rack to move away from the punch. The movement of the first rack drives the synchronous movement of the moving rod, thereby gradually pulling the moving rod out of the second through hole. When the air blowing hole is connected to the second through hole, the cooling air in the air storage cylinder is blown out through the air outlet pipe, connecting pipe and air blowing hole through the second through hole, avoiding negative pressure between the outer shell and the male mold core, and cooling the outer shell, thus making the demolding efficiency of the outer shell higher and the effect better.

[0009] 2) By setting up a vibration mechanism, when the gear rotates during demolding, it drives the first rotating rod and the driving pulley to rotate, and through the belt, it drives the driven pulley and the second rotating rod to rotate. The rotation of the second rotating rod drives the rotating disk to rotate synchronously. When the protrusion abuts against the side wall of the moving block, it pushes the moving block and the rubber plate to move. At the same time, the third spring is compressed. When the protrusion passes the side wall of the moving block, the moving block and the rubber plate can move and reset under the action of the third spring. This process is repeated, so that the rubber plate can reciprocate to strike and vibrate the side wall of the punch, thereby making the demolding efficiency higher and the effect better.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the telescopic mechanism includes a fixed plate fixedly connected to the end of the ejector pin, and a first fixed ring is fixedly sleeved on the side wall of the ejector pin, and a first spring is sleeved on the side wall of the ejector pin.

[0012] The beneficial effect of adopting the above-mentioned further solution is that when the moving plate moves towards the punch, the first spring is gradually compressed and pushes the moving rod to move, so as to slowly eject and demold the shell, which can play a certain protective role for the shell of electronic products and prevent it from being ejected all at once.

[0013] Furthermore, the first pushing mechanism includes a magnet fixedly connected to the top of the movable plate, and a first electromagnet and a second electromagnet are fixedly connected to the side wall of the punch.

[0014] The beneficial effect of adopting the above-mentioned further solution is that when the first electromagnet is energized, it attracts the magnet, causing the moving plate to move closer to the punch. Furthermore, the magnetic poles of the first and second electromagnets are opposite after being energized. When the second electromagnet is energized, it repels the magnet, which can push the moving plate to move away from the punch.

[0015] Furthermore, the second pushing mechanism includes a sliding groove formed on the side wall of the movable plate, and a first rack is slidably connected in the sliding groove. One end of the first rack is fixed to the end of the movable rod, and a support plate is fixedly connected to the side wall of the punch. A gear is rotatably connected to the top of the support plate through a first rotating rod, and a second rack is fixedly connected to the side wall of the movable plate.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the movement of the moving plate drives the movement of the second rack, the movement of the second rack causes the gear to rotate, and causes the first rack to move away from the punch. The movement of the first rack drives the synchronous movement of the moving rod, thereby gradually pulling the moving rod out of the second through hole.

[0017] Furthermore, the air blowing mechanism includes an air blowing hole formed on the side wall of the punch, and the air blowing hole communicates with the second through hole. An air storage cylinder is fixedly connected to the side wall of the punch, and an air inlet pipe is fixedly connected to the side wall of the air storage cylinder. A first one-way valve is fixedly connected inside the air inlet pipe, and an air outlet pipe is fixedly connected to the side wall of the air storage cylinder. A second one-way valve is fixedly connected inside the air outlet pipe. A connecting pipe is fixedly connected between the air outlet pipe and the air blowing hole, and a piston is slidably connected inside the air storage cylinder. The movement of the piston is driven by a third pushing mechanism.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the movement of the moving plate pushes the piston to slide into the air storage cylinder through the third pushing mechanism, so that the piston compresses the cooling gas in the air storage cylinder. When the blowing hole is connected to the second through hole, the cooling air in the air storage cylinder is blown out through the second through hole after passing through the air outlet pipe, the connecting pipe and the blowing hole.

[0019] Furthermore, the third pushing mechanism includes a connecting plate fixedly connected to the side wall of the movable plate, and a first T-shaped guide rod is inserted into the side wall of the connecting plate. One end of the first T-shaped guide rod is fixed to the end of the piston, and a second spring is sleeved on the side wall of the first T-shaped guide rod.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the movement of the moving plate drives the synchronous movement of the connecting plate, and pushes the piston into the gas storage cylinder through the second spring.

[0021] Furthermore, the vibration mechanism includes a movable block, and a plurality of arrayed rubber plates are fixedly connected to the side wall of the movable block. The movable block is connected to the side wall of the punch through a reset mechanism, and the movement of the movable block is driven by a fourth pushing mechanism.

[0022] The beneficial effect of adopting the above-mentioned further solution is that, during demolding, when the gear rotates, the fourth pushing mechanism pushes the moving block and the rubber plate to move back and forth, thereby causing the rubber plate to reciprocate and vibrate against the side wall of the punch.

[0023] Furthermore, the reset mechanism includes two symmetrically arranged second T-shaped guide rods inserted into the side wall of the moving block, one end of the second T-shaped guide rod is fixed to the side wall of the punch, a second fixing ring is fixedly sleeved on the side wall of the second T-shaped guide rod, and a third spring is sleeved on the side wall of the second T-shaped guide rod.

[0024] The beneficial effect of adopting the above-mentioned further scheme is that it guides and resets the movement of the moving block.

[0025] Furthermore, the fourth pushing mechanism includes a rotating disk rotatably connected to the top of the support plate via a second rotating rod, and the side wall of the rotating disk is fixedly connected with a plurality of arrayed protrusions, and the rotation of the second rotating rod is driven by a driving mechanism.

[0026] The beneficial effect of adopting the above-mentioned further solution is that the second rotating rod is driven to rotate by the driving mechanism, and the rotation of the second rotating rod drives the rotating disk to rotate synchronously. When the protrusion abuts against the side wall of the moving block, it pushes the moving block and the rubber plate to move.

[0027] Furthermore, the driving mechanism includes a driven pulley fixedly sleeved on the side wall of the second rotating rod, and a driving pulley fixedly sleeved on the side wall of the first rotating rod, and the driving pulley and the driven pulley are driven by a belt.

[0028] The beneficial effect of adopting the above-mentioned further solution is that when the gear rotates, it drives the first rotating rod and the driving pulley to rotate, and drives the driven pulley and the second rotating rod to rotate through the belt. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention;

[0031] Figure 3 This is a schematic diagram of the overall structure of the punch in this invention;

[0032] Figure 4 This is a partial cross-sectional view of the gas storage cylinder in this invention.

[0033] Figure 5 for Figure 1 Enlarged structural diagram at point A;

[0034] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0035] Figure 7 for Figure 3 Enlarged structural diagram at point C;

[0036] Figure 8 for Figure 4 Enlarged structural diagram at point D;

[0037] Figure 9 for Figure 8 A magnified structural diagram at point E in the middle.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1. Die cavity; 101. Mold core; 201. Magnet; 202. First electromagnet; 203. Second electromagnet; 301. First retaining ring; 302. Retaining plate; 303. First spring; 401. Sliding groove; 402. First rack; 403. Support plate; 404. First rotating rod; 405. Gear; 406. Second rack; 501. Air blowing hole; 502. Connecting pipe; 503. Air storage cylinder; 504. Air inlet pipe; 505. First one-way valve; 506. Air outlet pipe; 507. Second one-way valve; 508. Piston; 601, Connecting plate; 602, First T-shaped guide rod; 603, Second spring; 701, Moving block; 702, Rubber plate; 801, Second T-shaped guide rod; 802, Second fixing ring; 803, Third spring; 901, Second rotating rod; 902, Rotating disk; 903, Protrusion; 1001, Driven pulley; 1002, Driven pulley; 1003, Belt; 11, Punch; 1101, Male mold core; 12, First through hole; 13, Ejector pin; 14, Moving plate; 15, Second through hole; 16, Moving rod. Detailed Implementation

[0040] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0041] Electronic product casings are the most commonly used plastic parts in electronic products. They have the advantages of high strength and long service life. During processing, they need to be injection molded. After the injection molding is completed, the casing needs to be demolded.

[0042] After conducting in-depth investigation and research on the demolding process of electronic product casings, the inventors discovered that existing electronic product casing manufacturing methods mostly rely on ejector pins on the mold to push the formed casing out of the mold. However, this method easily creates negative pressure between the casing and the mold core during demolding, making ejection inconvenient and slow, and potentially damaging the casing. Furthermore, the casing cools slowly after molding, and may not be fully cooled before ejection, potentially causing it to stick to the mold core and further damaging the casing during ejection. This affects the efficiency and effectiveness of casing demolding. To address these issues, the inventors proposed a new method for manufacturing electronic product casings.

[0043] The present invention provides the following preferred embodiments.

[0044] like Figures 1-9As shown, a method for manufacturing an electronic product casing includes a concave mold 1 and a convex mold 11. The concave mold 1 includes a female mold core 101, and the convex mold 11 includes a male mold core 1101. The side wall of the male mold core 1101 has two symmetrically arranged first through holes 12, and ejector pins 13 are inserted into the first through holes 12. A movable plate 14 is sleeved on the side wall of the ejector pins 13, and a telescopic mechanism is provided between the movable plate 14 and the ejector pins 13. The side wall of the male mold core 1101 has a second through hole 15, and a movable rod 16 is inserted into the second through hole 15. The movement of the movable plate 14 is driven by a first pushing mechanism. Furthermore, the movement of the moving rod 16 is driven by the second pushing mechanism. The side wall of the punch 11 is provided with an air blowing mechanism for driving the second through hole 15 to blow air, and the side wall of the punch 11 is provided with a vibration mechanism for striking and vibrating it. During demolding, the cooling air can be automatically blown out through the second through hole 15 on the side wall of the male mold core 1101 to avoid negative pressure between the outer shell and the male mold core 1101. At the same time, the outer shell can be cooled, and the side wall of the punch 11 can be reciprocated and vibrated, thereby making the demolding efficiency higher and the effect better.

[0045] In this embodiment, as Figure 7 As shown, the telescopic mechanism includes a fixed plate 302 fixedly connected to the end of the ejector pin 13, and a first fixed ring 301 is fixedly sleeved on the side wall of the ejector pin 13. A first spring 303 is sleeved on the side wall of the ejector pin 13. When the moving plate 14 moves toward the punch 11, the first spring 303 is gradually compressed, which gradually increases the pushing force of the moving rod 16 on the outer shell, thus providing a certain protective effect on the outer shell of the electronic product and preventing it from being ejected all at once.

[0046] In this embodiment, as Figure 7 As shown, the first pushing mechanism includes a magnet 201 fixedly connected to the top of the moving plate 14, and a first electromagnet 202 and a second electromagnet 203 fixedly connected to the side wall of the punch 11. When the first electromagnet 202 is energized, it attracts the magnet 201, causing the moving plate 14 to move closer to the punch 11. Furthermore, the magnetic poles of the first electromagnet 202 and the second electromagnet 203 are opposite after being energized. When the second electromagnet 203 is energized, it repels the magnet 201, thus pushing the moving plate 14 to move away from the punch 11.

[0047] In this embodiment, as Figure 7 and Figure 8As shown, the second pushing mechanism includes a sliding groove 401 formed on the side wall of the movable plate 14, and a first rack 402 is slidably connected in the sliding groove 401. One end of the first rack 402 is fixed to the end of the movable rod 16, and a support plate 403 is fixedly connected to the side wall of the punch 11. A gear 405 is rotatably connected to the top of the support plate 403 through a first rotating rod 404, and a second rack 406 is fixedly connected to the side wall of the movable plate 14. The movement of the movable plate 14 drives the movement of the second rack 406. The movement of the second rack 406 causes the gear 405 to rotate, and causes the first rack 402 to move away from the punch 11. The movement of the first rack 402 drives the movable rod 16 to move synchronously, thereby gradually pulling the movable rod 16 out of the second through hole 15.

[0048] In this embodiment, as Figure 6 and Figure 8 As shown, the air blowing mechanism includes an air blowing hole 501 formed on the side wall of the punch 11, and the air blowing hole 501 communicates with the second through hole 15. An air storage cylinder 503 is fixedly connected to the side wall of the punch 11, and an air inlet pipe 504 is fixedly connected to the side wall of the air storage cylinder 503. A first one-way valve 505 is fixedly connected inside the air inlet pipe 504, and the air inlet pipe 504 is connected to external cooling air. An air outlet pipe 506 is fixedly connected to the side wall of the air storage cylinder 503, and a second one-way valve 507 is fixedly connected inside the air outlet pipe 506. The air outlet pipe 506 and the air blowing hole 501 are connected... A connecting pipe 502 is fixedly connected between the two parts, and a piston 508 is slidably connected inside the air storage cylinder 503. The movement of the piston 508 is driven by a third pushing mechanism. The movement of the moving plate 14 is driven by the third pushing mechanism to push the piston 508 to slide into the air storage cylinder 503, so that the piston 508 compresses the cooling gas in the air storage cylinder 503. When the blowing hole 501 is connected to the second through hole 15, the cooling air in the air storage cylinder 503 is blown out through the air outlet pipe 506, the connecting pipe 502 and the blowing hole 501 through the second through hole 15.

[0049] In this embodiment, as Figure 8 As shown, the third pushing mechanism includes a connecting plate 601 fixedly connected to the side wall of the moving plate 14, and a first T-shaped guide rod 602 is inserted into the side wall of the connecting plate 601. One end of the first T-shaped guide rod 602 is fixed to the end of the piston 508, and a second spring 603 is sleeved on the side wall of the first T-shaped guide rod 602. The movement of the moving plate 14 drives the connecting plate 601 to move synchronously, and pushes the piston 508 to slide into the air storage cylinder 503 through the second spring 603.

[0050] In this embodiment, as Figure 8 and Figure 9As shown, the vibration mechanism includes a movable block 701, and multiple arrayed rubber plates 702 are fixedly connected to the side wall of the movable block 701. The movable block 701 is connected to the side wall of the punch 11 through a reset mechanism, and the movement of the movable block 701 is driven by a fourth pushing mechanism. When demolding, when the gear 405 rotates, the fourth pushing mechanism pushes the movable block 701 and the rubber plates 702 to move back and forth, thereby causing the rubber plates 702 to reciprocate and vibrate against the side wall of the punch 11.

[0051] In this embodiment, as Figure 9 As shown, the reset mechanism includes two symmetrically arranged second T-shaped guide rods 801 inserted into the side wall of the moving block 701. One end of the second T-shaped guide rod 801 is fixed to the side wall of the punch 11. A second fixing ring 802 is fixedly sleeved on the side wall of the second T-shaped guide rod 801, and a third spring 803 is sleeved on the side wall of the second T-shaped guide rod 801, which plays a guiding and reset role for the movement of the moving block 701.

[0052] In this embodiment, as Figure 9 As shown, the fourth pushing mechanism includes a rotating disk 902 rotatably connected to the top of the support plate 403 via a second rotating rod 901, and a plurality of arrayed protrusions 903 are fixedly connected to the side wall of the rotating disk 902. The rotation of the second rotating rod 901 is driven by a driving mechanism, which drives the second rotating rod 901 to rotate. The rotation of the second rotating rod 901 drives the rotating disk 902 to rotate synchronously. When the protrusions 903 abut against the side wall of the moving block 701, they push the moving block 701 and the rubber plate 702 to move.

[0053] In this embodiment, as Figure 8 As shown, the drive mechanism includes a driven pulley 1001 fixedly sleeved on the side wall of the second rotating rod 901, and a driving pulley 1002 fixedly sleeved on the side wall of the first rotating rod 404. The driving pulley 1002 and the driven pulley 1001 are driven by a belt 1003. When the gear 405 rotates, it drives the first rotating rod 404 and the driving pulley 1002 to rotate, and drives the driven pulley 1001 and the second rotating rod 901 to rotate through the belt 1003.

[0054] The specific steps for using this invention are as follows:

[0055] In use, firstly, after the electronic product casing is formed, when demolding is required, the punch 11 is moved away from the die 1. At this time, the electronic product casing is fitted onto the side wall of the male mold core 1101. Then, the first electromagnet 202 is energized. After the first electromagnet 202 is energized, it attracts the magnet 201, causing the moving plate 14 to move closer to the punch 11. When the moving plate 14 moves, the first spring 303 is gradually compressed, which gradually increases the pushing force between the ejector pin 13 and the casing.

[0056] Simultaneously, the movement of the movable plate 14 causes the connecting plate 601 to move synchronously, and pushes the piston 508 into the air storage cylinder 503 via the second spring 603, causing the piston 508 to compress the cooling gas inside the air storage cylinder 503. Furthermore, the movement of the movable plate 14 causes the second rack 406 to move, which in turn causes the gear 405 to rotate, and causes the first rack 402 to move away from the punch 11. The movement of the first rack 402 then causes the movable rod 16 to move synchronously from... As the moving rod 16 is gradually withdrawn from the second through hole 15, when the air blowing hole 501 is connected to the second through hole 15, the cooling air in the air storage cylinder 503 is blown out through the air outlet pipe 506, connecting pipe 502 and air blowing hole 501 and then through the second through hole 15. At the same time, the squeezing force of the first spring 303 causes the moving rod 16 to push the outer shell out, which can avoid the generation of negative pressure between the outer shell and the male mold core 1101, and can cool the outer shell, thereby making the demolding efficiency of the outer shell higher and the effect better.

[0057] Furthermore, when gear 405 rotates, it drives the first rotating rod 404 and the driving pulley 1002 to rotate, and drives the driven pulley 1001 and the second rotating rod 901 to rotate via belt 1003. The rotation of the second rotating rod 901 drives the rotating disk 902 to rotate synchronously. When the protrusion 903 abuts against the side wall of the moving block 701, it pushes the moving block 701 and the rubber plate 702 to move. At the same time, the third spring 803 is compressed. When the protrusion 903 passes the side wall of the moving block 701, the moving block 701 and the rubber plate 702 can move and reset under the action of the third spring 803. This process repeats, so that the rubber plate 702 can reciprocate to strike and vibrate the side wall of the punch 11, thereby making the demolding efficiency higher and the effect better.

[0058] In summary, the beneficial effects of the present invention are specifically reflected in the fact that during demolding, cooling air can be automatically blown out through the second through hole 15 on the side wall of the male mold core 1101, avoiding negative pressure between the outer shell and the male mold core 1101. At the same time, the outer shell can be cooled, and the side wall of the punch 11 can be reciprocated and vibrated, thereby making the demolding efficiency higher and the effect better.

Claims

1. A method for manufacturing an electronic product casing, comprising a concave mold (1) and a convex mold (11), wherein the concave mold (1) includes a female mold core (101), and the convex mold (11) includes a male mold core (1101), wherein the sidewall of the male mold core (1101) has two symmetrically arranged first through holes (12), and ejector pins (13) are inserted into the first through holes (12), characterized in that, The ejector pin (13) has a movable plate (14) sleeved on its side wall, and a telescopic mechanism is provided between the movable plate (14) and the ejector pin (13); the male mold core (1101) has a second through hole (15) on its side wall, and a movable rod (16) is inserted into the second through hole (15); the movable plate (14) is moved by a first pushing mechanism, and the movable rod (16) is moved by a second pushing mechanism; the punch (11) has a blowing mechanism on its side wall for driving the second through hole (15) to blow air, and a vibration mechanism on its side wall for striking and vibrating it; the telescopic mechanism includes a fixed plate (302) fixedly connected to the end of the ejector pin (13), and a first fixed ring (301) is fixedly sleeved on the side wall of the ejector pin (13), and so on. The side wall of the ejector pin (13) is fitted with a first spring (303); the first pushing mechanism includes a magnet (201) fixedly connected to the top of the movable plate (14), and the side wall of the punch (11) is fixedly connected with a first electromagnet (202) and a second electromagnet (203); the second pushing mechanism includes a sliding groove (401) opened on the side wall of the movable plate (14), and a first rack (402) is slidably connected in the sliding groove (401), one end of the first rack (402) is fixed to the end of the movable rod (16), and a support plate (403) is fixedly connected to the side wall of the punch (11), the top of the support plate (403) is rotatably connected to a gear (405) through a first rotating rod (404), and a second rack (406) is fixedly connected to the side wall of the movable plate (14); The blowing mechanism includes an air hole (501) opened on the side wall of the punch (11), and the air hole (501) is connected to the second through hole (15). An air storage cylinder (503) is fixedly connected to the side wall of the punch (11), and an air inlet pipe (504) is fixedly connected to the side wall of the air storage cylinder (503). A first one-way valve (505) is fixedly connected inside the air inlet pipe (504), and an air outlet pipe (506) is fixedly connected to the side wall of the air storage cylinder (503). A second one-way valve (507) is fixedly connected inside the air outlet pipe (506). A connecting pipe (502) is fixedly connected between the air outlet pipe (506) and the air hole (501), and a piston (508) is slidably connected inside the air storage cylinder (503). The movement of the piston (508) is driven by a third pushing mechanism. The third pushing mechanism includes a connecting plate (601) fixedly connected to the side wall of the movable plate (14), and a first T-shaped guide rod (602) is inserted into the side wall of the connecting plate (601). One end of the first T-shaped guide rod (602) is fixed to the end of the piston (508), and a second spring (603) is sleeved on the side wall of the first T-shaped guide rod (602). The vibration mechanism includes a movable block (701), and a plurality of arrayed rubber plates (702) are fixedly connected to the side wall of the movable block (701). The movable block (701) is connected to the side wall of the punch (11) through a reset mechanism, and the movement of the movable block (701) is driven by a fourth pushing mechanism.

2. The method for manufacturing an electronic product casing according to claim 1, characterized in that, The reset mechanism includes two symmetrically arranged second T-shaped guide rods (801) inserted into the side wall of the moving block (701), and one end of the second T-shaped guide rod (801) is fixed to the side wall of the punch (11).

3. The method for manufacturing an electronic product casing according to claim 2, characterized in that, The second T-shaped guide rod (801) is fixedly fitted with a second fixing ring (802) on its side wall, and a third spring (803) is fitted on the side wall of the second T-shaped guide rod (801).

4. The method for manufacturing an electronic product casing according to claim 1, characterized in that, The fourth pushing mechanism includes a rotating disk (902) rotatably connected to the top of the support plate (403) via a second rotating rod (901), and a plurality of arrayed protrusions (903) are fixedly connected to the side wall of the rotating disk (902). The rotation of the second rotating rod (901) is driven by a driving mechanism.

5. The method for manufacturing an electronic product casing according to claim 4, characterized in that, The drive mechanism includes a driven pulley (1001) fixedly sleeved on the side wall of the second rotating rod (901), and a driving pulley (1002) fixedly sleeved on the side wall of the first rotating rod (404), and the driving pulley (1002) and the driven pulley (1001) are driven by a belt (1003).

Citation Information

Patent Citations

  • Electronic product casing manufacturing method

    CN103702529B

  • Automobile part injection mold and injection molding device

    CN118650821A

  • Exhaust structure of injection mold

    CN220661627U