Anti-static ceramic suction nozzle injection molding device

Abstract

The utility model discloses an anti-static ceramic suction nozzle injection molding device, which belongs to the technical field of anti-static ceramic suction nozzle injection molding and comprises an injection molding machine main body, an upper mold and a lower mold are arranged on the injection molding machine main body, and two fixing frames and a hopper are mounted on the injection molding machine main body. Two fixing plates are fixedly mounted between the two fixing frames, a motor is fixedly mounted on the surface of one of the fixing plates, and a two-way screw is rotatably mounted between the two fixing plates; the fixing frame is arranged to be used in cooperation with the upper mold body and the lower mold body, the upper mold body and the lower mold body are both movably designed and can be driven by the two-way screw to move relatively, and then an injection molding part is reserved on the surface of a top plate in cooperation with the top plate during mold splitting, and rapid demolding and taking-out of the injection molding part are facilitated; and the problem that the injection molding part is easily left in the lower mold and is difficult to quickly take out during fixed design of the lower mold is avoided, and the operation, use and demolding convenience is improved.

Description

An antistatic ceramic nozzle injection molding device Technical Field

[0001] This utility model belongs to the field of antistatic ceramic nozzle injection molding technology, specifically relating to an antistatic ceramic nozzle injection molding device. Background Technology

[0002] Static electricity (ESD), also known as electrostatic discharge, is an objective natural phenomenon. Static electricity can be generated in various ways, such as through contact and friction. ESD protection technology is widely used in the electronics and aerospace industries. With the miniaturization of integrated circuits, the requirements for ESD protection in SMT nozzles (used by SMT pick-and-place machines to pick up and place components that actually come into contact with them) are constantly increasing. When SMT nozzles pick up and place electronic components, static electricity is easily generated during the contact between the nozzle tip and the electronic components. To reduce the damage caused by static electricity to electronic components, ceramic nozzles with anti-static properties are extremely important.

[0003] The production process of ceramic nozzles includes steps such as preparing ceramic powder, adding binder and granulation, injection molding of nozzle blanks, degreasing treatment of nozzle blanks, and high-temperature sintering. Among these steps, injection molding requires the use of an injection molding device. However, existing injection molding machines use an upper mold that moves while the lower mold is fixed. This means that after mold separation, the injection molded part remains inside the lower mold. Therefore, the injection molded part still needs to be pried out to be removed, which is inconvenient, inefficient, and can easily cause surface damage to the injection molded part during the prying process. Summary of the Invention

[0004] The purpose of this utility model is to provide an anti-static ceramic suction nozzle injection molding device to solve the problem mentioned in the background art that in the existing injection molding machines, the upper mold is movable while the lower mold is fixed. That is to say, after the mold is separated, the injection molded part is left inside the lower mold. Therefore, the injection molded part still needs to be pried to be taken out, which makes the demolding operation inconvenient, inefficient, and prone to surface damage to the injection molded part during the prying process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an antistatic ceramic nozzle injection molding device, comprising an injection molding machine body, an upper mold and a lower mold mounted on the injection molding machine body, two fixed frames and a hopper mounted on the injection molding machine body, two fixed plates fixedly mounted between the two fixed frames, a motor fixedly mounted on the surface of one of the fixed plates, a bidirectional screw rotatably mounted between the two fixed plates, threaded blocks threadedly mounted on the outer surfaces of both threads of the bidirectional screw, two threaded blocks respectively fixedly mounted on the side of the upper mold and the side of the lower mold, a base plate fixedly mounted between the two fixed plates, a plurality of ejector pins fixedly mounted on the base plate, and the lower mold... The upper mold and the lower mold each have several semi-circular injection grooves on their opposite surfaces. Two semi-circular injection grooves that are opposite each other are used together. The lower surface of the lower mold has an ejector hole at the position opposite the semi-circular injection groove. The top of the ejector rod is fixedly installed with a top plate, which is located inside the ejector hole. The surface of the hopper is threaded with a material cover. The surface of the material cover is fixedly installed with a motor. The output shaft of the motor extends into the hopper and is fixedly installed with a rotating shaft. Several stirring blades are fixedly installed on the outer surface of the rotating shaft. The main body of the injection molding machine has a material pump. The inlet of the material pump is connected to the hopper, and the outlet of the material pump is connected to the semi-circular injection groove on the upper mold. A melt heater is installed inside the hopper.

[0006] By adopting the above solution, a fixed frame is set up and used in conjunction with an upper mold and a lower mold. Both the upper mold and the lower mold are designed to be movable and can move relative to each other under the drive of a bidirectional screw. This allows the injection molded part to remain on the surface of the top plate during mold parting, facilitating quick demolding and removal of the injection molded part. This avoids the problem of the injection molded part being easily left inside the lower mold and difficult to remove quickly when the lower mold is fixed. This improves the convenience of operation and demolding. By setting up a motor in conjunction with a rotating shaft and stirring blades, the material can be stirred and agitated in the molten state, avoiding sedimentation and stratification. In addition, the scraper can prevent material from adhering and causing waste.

[0007] In the above scheme, it should be noted that both the motor and the electric motor are electrically connected to an external power source.

[0008] In a preferred embodiment, the upper mold and the lower mold are provided with sealing grooves on their opposite surfaces, and sealing rings are embedded in the sealing grooves, with the two sealing rings arranged in a relatively close fit.

[0009] Using the above solution, the sealing groove is used in conjunction with the sealing ring to ensure a good sealing effect when the upper and lower molds are closed.

[0010] In a preferred embodiment, a plurality of guide rods are fixedly installed on the inner wall of the fixing frame, and a plurality of guide sleeves are fixedly installed on the side of the upper mold and the side of the lower mold, with the guide sleeves slidably installed on the outer surface of the guide rods at corresponding positions.

[0011] By using the above solution, the guide rod and guide sleeve are used together. When the upper and lower molds move up and down, the guide sleeve can slide on the surface of the guide rod. The combination of the guide sleeve and guide rod provides a good support and stability effect.

[0012] In a preferred embodiment, a sliding sleeve is fixedly installed on the side of both the upper mold and the side of the lower mold, and a sliding rod is fixedly installed between the two fixed plates, with the sliding sleeve slidably installed on the outer surface of the sliding rod.

[0013] By adopting the above solution, and through the coordinated use of the sliding sleeve and sliding rod, the smoothness of the movement of the upper and lower molds can be further guaranteed.

[0014] In a preferred embodiment, a plurality of scraper blades are detachably mounted on the outside of the rotating shaft, and the scraper blades are fitted and arranged against the inner wall of the hopper.

[0015] By using the above solution, the scraper can be used to scrape off the material adhering to the inner wall of the hopper, thus avoiding waste caused by material adhesion.

[0016] In a preferred embodiment, an installation rod is fixedly installed at the end of the scraper, an installation plate is fixedly installed on the outer surface of the rotating shaft, a fixing rod is fixedly installed on the surface of the installation plate, the fixing rod has threads on its surface, a through hole is provided on the installation rod, the fixing rod passes through the through hole and is threaded with a nut, and the nut is fitted and arranged on the surface of the installation rod.

[0017] By using the above solution, the mounting plate and mounting rod are used in conjunction with the fixing rod and nut to achieve convenient disassembly and assembly of the scraper, making cleaning and replacement easy.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This antistatic ceramic nozzle injection molding device is designed to work in conjunction with a fixed frame, an upper mold, and a lower mold. Both the upper and lower molds are movable and can move relative to each other under the drive of a bidirectional screw. This allows the injection molded part to remain on the surface of the top plate during mold separation, facilitating quick demolding and removal of the injection molded part. This avoids the problem of the injection molded part being easily left inside the lower mold and difficult to remove quickly when the lower mold is fixed, thus improving the ease of operation and demolding.

[0020] This antistatic ceramic nozzle injection molding device, through the use of a motor in conjunction with a rotating shaft and stirring blades, can stir and agitate materials in a molten state, avoiding sedimentation and stratification. The scraper plate can also prevent material from adhering and causing waste. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the structure of this utility model;

[0022] Figure 2 is a structural schematic diagram of the fixing frame, upper mold and lower mold of this utility model;

[0023] Figure 3 is a structural schematic diagram of the present invention from another angle as shown in Figure 2.

[0024] Figure 4 is a structural schematic diagram of the cross-section of the upper and lower molds of this utility model;

[0025] Figure 5 is a structural schematic diagram of the cross-section of the hopper of this utility model;

[0026] Figure 6 is an enlarged structural schematic diagram of point A in Figure 5 of this utility model.

[0027] In the diagram: 1. Injection molding machine body; 2. Upper mold; 3. Lower mold; 4. Fixing frame; 5. Fixing plate; 6. Motor; 7. Bidirectional screw; 8. Threaded block; 9. Base plate; 10. Ejector rod; 11. Top plate; 12. Hopper; 13. Material cover; 14. Motor; 15. Rotating shaft; 16. Agitator blade; 17. Scraper; 18. Sealing ring; 19. Guide sleeve; 20. Guide rod; 21. Sliding sleeve; 22. Sliding rod; 23. Mounting rod; 24. Mounting plate; 25. Fixing rod; 26. Nut. Detailed Implementation

[0028] Please refer to Figures 1-6. This utility model provides an anti-static ceramic nozzle injection molding device, including an injection molding machine body 1. An upper mold 2 and a lower mold 3 are mounted on the injection molding machine body 1. Two fixing frames 4 and a hopper 12 are installed on the injection molding machine body 1. Two fixing plates 5 are fixedly installed between the two fixing frames 4. A motor 6 is fixedly installed on the surface of one of the fixing plates 5. A bidirectional screw 7 is rotatably installed between the two fixing plates 5. Threaded blocks 8 are threaded onto the outer surfaces of both threads of the bidirectional screw 7. The two threaded blocks 8 are respectively fixedly installed on the side of the upper mold 2 and the side of the lower mold 3. A base plate 9 is fixedly installed between the two fixing plates 5. Several ejector pins 10 are fixedly installed on the base plate 9. The lower mold 3 and the upper mold 2... Several semi-circular injection grooves are provided on opposite sides. Two semi-circular injection grooves that are opposite each other are used together. A top ejector hole is provided on the lower surface of the lower mold 3, which is directly opposite the semi-circular injection groove. A top plate 11 is fixedly installed on the top of the ejector rod 10 and the top plate 11 is located inside the top ejector hole. A material cover 13 is threaded on the surface of the hopper 12. A motor 14 is fixedly installed on the surface of the material cover 13. The output shaft of the motor 14 extends into the hopper 12 and a rotating shaft 15 is fixedly installed. Several stirring blades 16 are fixedly installed on the outer surface of the rotating shaft 15. The injection molding machine body 1 has a material pump. The inlet of the material pump is connected to the hopper 12, and the outlet of the material pump is connected to the semi-circular injection groove on the upper mold 2. A melt heater is installed inside the hopper 12.

[0029] By setting a fixed frame 4 and using it in conjunction with the upper mold 2 and lower mold 3, both of which are movable and can move relative to each other under the drive of the bidirectional screw 7, the injection molded part is left on the surface of the top plate 11 during mold parting, which facilitates the quick demolding and removal of the injection molded part. This avoids the problem that the injection molded part is easily left inside the lower mold 3 and is difficult to remove quickly when the lower mold 3 is fixed. This improves the convenience of demolding and operation. By setting a motor 14 in conjunction with the rotating shaft 15 and the stirring blade 16, the material can be stirred and moved in the molten state to avoid sedimentation and stratification. The scraper 17 can also prevent material from sticking and causing waste.

[0030] Both the upper mold 2 and the lower mold 3 have sealing grooves on their opposite surfaces, and sealing rings 18 are embedded in the sealing grooves. The two sealing rings 18 are arranged in a relatively close manner. The sealing grooves are used in conjunction with the sealing rings 18 to ensure that the upper mold 2 and the lower mold 3 have a good sealing effect when the molds are closed.

[0031] Several guide rods 20 are fixedly installed on the inner wall of the fixed frame 4. Several guide sleeves 19 are fixedly installed on the side of the upper mold 2 and the side of the lower mold 3. The guide sleeves 19 are slidably installed on the outer surface of the guide rods 20 at the corresponding positions. By using the guide rods 20 and guide sleeves 19 together, the upper mold 2 and the lower mold 3 can slide on the surface of the guide rods 20 through the guide sleeves 19 when they move up and down. The guide sleeves 19 and guide rods 20 work together to achieve a good supporting and stabilizing effect.

[0032] Sliding sleeves 21 are fixedly installed on the side of the upper mold 2 and the side of the lower mold 3. A sliding rod 22 is fixedly installed between the two fixed plates 5. The sliding sleeves 21 are slidably installed on the outer surface of the sliding rod 22. By using the sliding sleeves 21 and the sliding rod 22 together, the smoothness of the movement of the upper mold 2 and the lower mold 3 can be further ensured.

[0033] Several scraper blades 17 are detachably installed on the outside of the rotating shaft 15. The scraper blades 17 are attached to the inner wall of the hopper 12. The scraper blades 17 can be used to scrape off the material adhering to the inner wall of the hopper 12, avoiding material adhesion and waste.

[0034] A mounting rod 23 is fixedly installed at the end of the scraper 17. A mounting plate 24 is fixedly installed on the outer surface of the rotating shaft 15. A fixing rod 25 is fixedly installed on the surface of the mounting plate 24. The surface of the fixing rod 25 has threads. A through hole is opened on the mounting rod 23. The fixing rod 25 passes through the through hole and is threaded with a nut 26. The nut 26 is fitted and arranged on the surface of the mounting rod 23. By using the mounting plate 24 and the mounting rod 23 in conjunction with the fixing rod 25 and the nut 26, the scraper 17 can be easily disassembled and assembled, making it convenient for cleaning and replacement.

[0035] In use, unscrew the material cover 13, add material to the hopper 12, screw the material cover 13 back on, and start the melting heater in the hopper 12 to melt the material. In the initial state, the upper mold 2 and the lower mold 3 are in the closed state. Start the motor 14 and the pump. The motor 14 drives the rotating shaft 15 to rotate the stirring blade 16 to avoid material sedimentation and stratification. At the same time, the scraper 17 rotates with the rotating shaft 15 to clean the inner wall and prevent material adhesion. Meanwhile, the pump draws out the molten material and injects it into the semi-circular injection groove in the upper mold 2 and the lower mold 3 for injection molding. After injection molding is completed, the pump stops and the motor 6 is started. The motor 6 drives the bidirectional screw 7 to rotate, which in turn drives the two threaded blocks 8 to move the upper mold 2 and the lower mold 3 away from each other. At this time, the injection molded part is exposed and left on the surface of the top plate 11, realizing the quick material removal operation of mold separation.

Claims

1. An antistatic ceramic nozzle injection molding device, characterized in that: The injection molding machine includes a main body (1), on which an upper mold (2) and a lower mold (3) are provided. Two fixed brackets (4) and a hopper (12) are mounted on the main body (1). Two fixed plates (5) are fixedly installed between the two fixed brackets (4). A motor (6) is fixedly installed on the surface of one of the fixed plates (5). A bidirectional screw (7) is rotatably installed between the two fixed plates (5). Threaded blocks (8) are threaded onto the outer surfaces of the two threads of the bidirectional screw (7). The two threaded blocks (8) are respectively fixedly installed on the side of the upper mold (2) and the side of the lower mold (3). A base plate (9) is fixedly installed between the two fixed plates (5). Several ejector pins (10) are fixedly installed on the base plate (9). The lower mold (3) and the upper mold (2) have openings on their opposite sides. Several semi-circular injection grooves are provided, with two semi-circular injection grooves facing each other and used together. The lower mold (3) has a top material hole at the position of the semi-circular injection groove on its lower surface. The top plate (11) is fixedly installed on the top of the top rod (10) and the top plate (11) is located inside the top material hole. The surface of the hopper (12) is threaded with a material cover (13). The surface of the material cover (13) is fixedly installed with a motor (14). The output shaft of the motor (14) extends into the hopper (12) and is fixedly installed with a rotating shaft (15). Several stirring blades (16) are fixedly installed on the outer surface of the rotating shaft (15). The main body (1) of the injection molding machine has a material pump. The inlet of the material pump is connected to the hopper (12), and the outlet of the material pump is connected to the semi-circular injection groove on the upper mold (2). A melt heater is installed inside the hopper (12).

2. The antistatic ceramic nozzle injection molding device according to claim 1, characterized in that: The upper mold (2) and the lower mold (3) are provided with sealing grooves on their opposite surfaces, and sealing rings (18) are embedded in the sealing grooves. The two sealing rings (18) are arranged in close contact with each other.

3. The antistatic ceramic nozzle injection molding device according to claim 1, characterized in that: The inner wall of the fixed frame (4) is fixedly installed with several guide rods (20), and the sides of the upper mold (2) and the lower mold (3) are fixedly installed with several guide sleeves (19). The guide sleeves (19) are slidably installed on the outer surface of the guide rods (20) at the corresponding positions.

4. The antistatic ceramic nozzle injection molding device according to claim 1, characterized in that: Sliding sleeves (21) are fixedly installed on the side of the upper mold (2) and the side of the lower mold (3). A sliding rod (22) is fixedly installed between the two fixed plates (5). The sliding sleeves (21) are slidably installed on the outer surface of the sliding rod (22).

5. The antistatic ceramic nozzle injection molding device according to claim 1, characterized in that: Several scraper blades (17) are detachably installed on the outside of the rotating shaft (15), and the scraper blades (17) are attached to the inner wall of the hopper (12).

6. The antistatic ceramic nozzle injection molding device according to claim 5, characterized in that: An installation rod (23) is fixedly installed at the end of the scraper (17). An installation plate (24) is fixedly installed on the outer surface of the rotating shaft (15). A fixing rod (25) is fixedly installed on the surface of the installation plate (24). The surface of the fixing rod (25) has threads. A through hole is opened on the installation rod (23). The fixing rod (25) passes through the through hole and is threaded with a nut (26). The nut (26) is fitted and arranged on the surface of the installation rod (23).

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