An injection molding machine insert installation apparatus

Abstract

The application discloses an injection molding machine insert mounting device and relates to the field of injection molding production equipment. The device comprises a manipulator, the manipulator comprises a horizontal transverse arm and a vertical moving arm, the vertical moving arm is installed on the horizontal transverse arm, a rotating rod is installed on the vertical moving arm, a piece taking clamp and an insert mounting clamp are connected to the bottom of the rotating rod, the piece taking clamp and the insert mounting clamp are installed on a turnover structure, the back of the piece taking clamp and the insert mounting clamp is connected through a pneumatic linkage assembly, the piece taking clamp and the insert mounting clamp can realize turnover change between horizontal and vertical states through the set turnover structure, the piece taking clamp and the insert mounting clamp and the turnover structure can be driven by the rotating rod to realize that the piece taking clamp and the insert mounting clamp are opposite to the mold core of a mold, and when the piece taking clamp clamps an injection molding product, the brass insert in the insert mounting clamp can be in a waiting installation state through the pneumatic linkage assembly.

Description

Technical Field

[0001] This invention relates to the field of injection molding production equipment, specifically to an insert installation device for injection molding machines. Background Technology

[0002] In the production of some plastic products, especially those used in automobiles, inserts with threaded holes are often placed at designated locations during injection molding to provide screw holes for connection with other parts. These inserts are then encased in molten plastic during injection molding to produce injection molded parts with inserts.

[0003] Because brass has good thermal conductivity, it heats up more easily during injection molding, making it less likely for the encapsulated plastic to crack or deform due to temperature differences. Brass is generally used for inserts. However, precisely because of this, manual placement of inserts in existing technologies can easily lead to burns. Furthermore, the fixtures for placing inserts have significantly different functions from those for removing inserts, requiring separate designs. This means separating the two steps of removing and placing inserts. Considering that the injection molding production cycle for automotive products is typically 30-50 seconds, separating these two steps undoubtedly increases molding time and significantly impacts production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an insert installation device for injection molding machines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an injection molding machine insert installation device, comprising a robotic arm, the robotic arm comprising a horizontal transverse arm and a vertical transverse arm, the vertical transverse arm being mounted on the horizontal transverse arm, a rotating rod being mounted on the vertical transverse arm, a part-retrieving clamp and an insert installation clamp being connected to the bottom of the rotating rod, the part-retrieving clamp and the insert installation clamp being mounted on a flipping structure, the back sides of the part-retrieving clamp and the insert installation clamp being connected by a pneumatic linkage assembly, the part-retrieving clamp and the insert installation clamp being able to achieve horizontal and vertical flipping changes through the set flipping structure, the part-retrieving clamp and the insert installation clamp and the flipping structure being able to be driven by the rotating rod to make the part-retrieving clamp and the insert installation clamp facing the mold core, the part-retrieving clamp being able to make the brass insert in the insert installation clamp in a ready-to-install state through the pneumatic linkage assembly when clamping the injection molded product.

[0006] Preferably, the horizontal lateral arm is mounted on top of the injection molding machine via a mounting base, and the vertical lateral arm is mounted on a translation slide rail and can be moved freely laterally by the horizontal lateral arm.

[0007] Preferably, the top of the rotating rod is rotatably mounted on the vertical moving arm, the top of the rotating rod is connected to the output shaft of the first servo motor, and the first servo motor is mounted on the vertical moving arm.

[0008] Preferably, the part removal fixture includes a suction cup, a suction cup fixing plate, and a connecting block 1. The suction cup is set according to the number and position of the products in the mold. The suction cup is mounted on the suction cup fixing plate, the suction cup fixing plate is mounted on the connecting block 1, and the connecting block 1 is mounted on the flipping structure.

[0009] Preferably, the insert mounting fixture includes an mounting tube, an insert fixing pin, a push tube, and a push pin. The head of the mounting tube is provided with an insert fixing head. The insert fixing pin is installed inside the push tube and can slide freely inside the push tube. The end of the push tube is provided with a pushing end. The end of the insert fixing pin is provided with a sealing plate. One end of the push pin is connected to the insert fixing pin, and the other end is connected to the sealing plate. The mounting tube is mounted on a mounting plate. The mounting tube is set according to the number and position of the products in the mold. The mounting plate is mounted on a connecting block two. The mounting block connecting block two is mounted on a flipping structure.

[0010] Preferably, the head of the insert fixing pin is provided with a spring piece that holds the insert in place by elastic force.

[0011] Preferably, the flipping structure includes a second servo motor, a drive shaft, and a flipping block. The second servo motor is installed at the lower end of the rotating rod, the drive shaft is rotatably installed inside the rotating rod, the flipping block is connected to the drive shaft, and the first connecting block and the second connecting block are respectively connected to two vertically adjacent sides of the flipping block.

[0012] Preferably, the pneumatic linkage assembly includes a first pipe, a second pipe, a side connecting pipe, and a piston rod. The first pipe is connected to a suction cup near the second connecting block, and the second pipe is connected to a suction cup away from the second connecting block. The first pipe and the second pipe are connected and sealed after connection. The side connecting pipe is located directly behind the mounting pipe. A push pipe is slidably connected to the outlet of the side connecting pipe and sealed by the end of the push pipe. An annular retaining ring is provided inside the side connecting pipe. The annular retaining ring is in separable sealing contact with the sealing plate. The piston rod is slidably connected inside the first pipe, and the side connecting pipe is located behind the piston plate of the piston rod. The end of the piston rod is connected to the pushing assembly.

[0013] Preferably, the pushing assembly includes a cylinder and a push block. The cylinder is fixedly mounted on the connecting block two, one end of the push block is mounted on the output shaft of the cylinder, and the other end of the push block is connected to the piston rod.

[0014] Preferably, the side connecting pipe is located between the piston plate and the separator plate of the piston rod, and the separator plate and the piston rod are connected by a sliding seal.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention can set the part-picking fixture and the insert-placing fixture on the same robotic arm, and simultaneously use the air pressure change during part picking to install the insert into the injection molding machine mold, that is, integrate the two steps of part picking and insert placement and form a linkage, which reduces the volume of the two fixtures for part picking and insert placement and saves the required time.

[0017] 2. This invention replaces manual placement of inserts, avoiding the risk of burns. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention;

[0020] Figure 3 Here is a structural diagram of the rotating rod;

[0021] Figure 4 Structural diagrams of the component retrieval fixture and the insert mounting fixture;

[0022] Figure 5 Structural diagrams of the component retrieval fixture and the insert mounting fixture;

[0023] Figure 6 for Figure 5 Cross-sectional view of the inner EE section;

[0024] Figure 7 for Figure 6 Enlarged view of the structure at point F inside;

[0025] Figure 8 for Figure 6 Enlarged view of the structure at point G;

[0026] Figure 9 This is a schematic diagram of the structure of the present invention installed on an injection molding machine.

[0027] In the diagram: 1-robotic arm; 11-horizontal lateral arm; 12-vertical lateral arm;

[0028] 2-Rotating lever; 21-Servo motor one;

[0029] 3-Piece retrieval clamp; 31-Suction cup; 32-Suction cup fixing plate; 33-Connecting block one;

[0030] 4-Insert mounting fixture; 41-Mounting tube; 411-Insert fixing head; 42-Insert fixing pin; 421-Spring; 43-Push tube; 431-Push end; 44-Push pin; 45-Sealing plate; 46-Mounting plate; 47-Connecting block two;

[0031] 5-Flipping structure; 51-Second servo motor; 52-Drive shaft; 53-Flipping block;

[0032] 6-Pneumatic linkage assembly; 61-Pipe 1; 62-Pipe 2; 63-Side connecting pipe; 64-Piston rod; 65-Annular retaining ring; 66-Push assembly; 661-Cylinder; 662-Push block. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 9 This embodiment takes the production of four-cavity products in an injection molding machine as an example. The present invention provides a technical solution: an insert installation device for an injection molding machine, including a robotic arm 1. The robotic arm 1 comprises a horizontal transverse arm 11 and a vertical moving arm 12. The vertical moving arm 12 is mounted on the horizontal transverse arm 11. A rotating rod 2 is mounted on the vertical moving arm 12. A part-retrieving clamp 3 and an insert installation clamp 4 are connected to the bottom of the rotating rod 2. Both the part-retrieving clamp 3 and the insert installation clamp 4 are mounted on a flipping structure 5. The back of the part-retrieving clamp 3 and the insert installation clamp 4 are connected by a pneumatic linkage assembly. The component 6 is connected. The component removal clamp 3 and the insert mounting clamp 4 can be flipped between horizontal and vertical states through the set flipping structure 5. The component removal clamp 3, the insert mounting clamp 4, and the flipping structure 5 can be driven by the rotating rod 2 to make the component removal clamp 3 and the insert mounting clamp 4 face the mold core. When the component removal clamp 3 is clamping the injection molded product, the pneumatic linkage component 6 can make the brass insert in the insert mounting clamp 4 be in the installation state. When the component removal clamp 3 removes the part, the air pressure change in the suction cup 31 drives the insert, so that the insert can be correctly installed in the mold in the injection molding machine.

[0035] In this embodiment, the horizontal transverse arm 11 includes two sets of moving arms, one horizontal and one vertical, and is mounted on the top of the injection molding machine via a mounting base. The vertical moving arm 12 is mounted on the translation slide rail 11 and can be driven by the horizontal transverse arm 11 to move freely horizontally. When it moves into the injection molding machine, it completes the operation of picking up the part and installing the insert. When it moves out of the injection molding machine, it completes the operation of recycling the product and placing the insert into the insert mounting fixture 4.

[0036] In this embodiment, the top of the rotating rod 2 is rotatably mounted on the vertical moving arm 12. The top of the rotating rod 2 is connected to the output shaft of the servo motor 21. The servo motor 21 is mounted on the vertical moving arm 12. By setting the servo motor 21, the rotating rod 2, the part-removing clamp 3, the insert mounting clamp 4, and the flipping structure 5 mounted on the rotating rod 2 are moved and rotated. Initially, the part-removing clamp 3 faces the mold core inside the injection molding machine to remove the product. After rotation, the insert mounting clamp 4 faces the mold core to place the insert.

[0037] In this embodiment, the part removal fixture 3 includes a suction cup 31, a suction cup fixing plate 32, and a connecting block 33. The suction cup 31 is set according to the number and position of the products in the mold. The suction cup 31 is mounted on the suction cup fixing plate 32, the suction cup fixing plate 32 is mounted on the connecting block 33, and the connecting block 33 is mounted on the flipping structure 5. When the suction cup 31 is attached to the product, the piston rod 64 is pulled to form a negative pressure in the suction cup 31, which can suck up the product and remove it.

[0038] In this embodiment, the insert mounting fixture 4 includes a mounting tube 41, an insert fixing pin 42, a push tube 43, and a push pin 44. The head of the mounting tube 41 is provided with an insert fixing head 411. The insert fixing pin 42 is installed inside the push tube 43 and can slide freely within the push tube 43. The end of the push tube 43 is provided with a pushing end 431. The end of the insert fixing pin 42 is provided with a sealing plate 45. One end of the push pin 44 is connected to the insert fixing pin 42, and the other end is connected to the sealing plate 45. The mounting tube 41 is mounted on a mounting plate 46. The mounting tube 41 is set according to the number and position of the products in the mold. The mounting plate 46 is mounted on the connecting block 47. The mounting block connecting block 47 is mounted on the flipping structure 5. The insert is mounted on the insert fixing pin 42 and limited by the insert fixing head 411. Then, when the end of the push tube 43 is pushed by air pressure, it will be pushed forward, so that the insert moves into the mold and completes the installation of the insert. The sealing plate 45 and the annular retaining ring 65 set here are made of magnetic materials that can attract each other, so that they are tightly attached to each other and form a seal in a natural state.

[0039] In this embodiment, the head of the insert fixing pin 42 is provided with a spring piece 421 that holds the insert in place by elastic force. The spring piece 421 supports and holds the insert from the inside of the insert by elastic force, so that the insert can be installed in the mounting tube 41.

[0040] In this embodiment, the flipping structure 5 includes a second servo motor 51, a drive shaft 52, and a flipping block 53. The second servo motor 51 is installed at the lower end of the rotating rod 2, the drive shaft 52 is rotatably installed inside the rotating rod 2, and the flipping block 53 is connected to the drive shaft 52. The first connecting block 33 and the second connecting block 47 are respectively connected to two vertically adjacent sides of the flipping block 53. By rotating the retrieval clamp 3 with the second servo motor 51, the side of the retrieval clamp 3 with the suction cup 31 after the product has been retrieved faces the ground. After the suction cup 31 is ventilated and loses its suction force, the product falls off naturally by gravity, thus completing the collection of the product.

[0041] In this embodiment, the pneumatic linkage assembly 6 includes a first pipe 61, a second pipe 62, a side connecting pipe 63, and a piston rod 64. The first pipe 62 is connected to a suction cup 31 near the second connecting block 47, and the second pipe 62 is connected to a suction cup 31 away from the second connecting block 47. The first pipe 61 and the second pipe 62 are connected and sealed after connection. The side connecting pipe 63 is located directly behind the mounting pipe 41. A push pipe 43 is slidably connected to the outlet of the side connecting pipe 63 and sealed by the end of the push pipe 43. An annular retaining ring 65 is provided inside the side connecting pipe 63. The annular retaining ring 65 is in separable sealing contact with the sealing plate 45. The piston rod 64 is slidably connected inside the first pipe 61, and the side connecting pipe 63 is located behind the piston plate of the piston rod 64. The end of the piston rod 64 is connected to the pushing assembly 66. The pushing assembly 66 includes a cylinder 661 and a pusher block 662. The cylinder 661 is fixedly mounted on the connecting block 47. One end of the pusher block 662 is mounted on the output shaft of the cylinder 661, and the other end of the pusher block 662 is connected to the piston rod 64. When the cylinder 661 pushes the piston rod 64 to move away from the suction cup 31, the space between the suction cup 31 and the piston plate of the piston rod 64 increases. The suction cup 31 generates negative pressure to adsorb the product and complete the removal of the part. At the same time, the space in the side connecting pipe 63 on the other side of the piston plate becomes smaller due to the partition plate 68, which increases the air pressure on the sealing plate 45. When the pusher pin 44 is retracted under pressure, the sealing plate 45 separates from the annular retaining ring 65, and the gas flows out, pushing the pushing end 431 on the pusher tube 43, which drives the pusher tube 43 to push the insert on the insert fixing pin 42 into the mold.

[0042] Working Principle: During operation, when the part-removing fixture 3 and the insert mounting fixture 4 move out of the injection molding machine, the insert is installed onto the insert fixing pin 42. Then, the part-removing fixture 3 and the insert mounting fixture 4 are rotated by the second servo motor 51, making the suction cup fixing plate 32 perpendicular to the bottom surface. At this time, the suction cup 31 is directly facing the mold core, facilitating product removal. After injection molding, the horizontal transverse arm 11 moves the part-removing fixture 3 and the insert mounting fixture 4 into the injection molding machine, where the suction cup 31 removes the product. Then, the first servo motor 21 rotates the part-removing fixture 3 and the insert mounting fixture 4, making the mounting tube 41 directly facing the mold core. At this time, the product is removed by the longitudinal... The horizontal transverse arm 11 drives the end of the insert fixing pin 42 to press against the fixing pin used for installing the insert inside the mold core. Driven by the longitudinal horizontal transverse arm 11, with the insert fixing pin 42 extending out of the mounting tube 41, the insert fixing pin 42 will be pushed backward. At this time, the sealing plate 45 will separate from the annular retaining ring 65. Because the cylinder 661 pushes the piston rod 64 to pick up the product, the pressure in the side connecting tube 63 increases. This high-pressure gas flows out through the gap created by the separation of the sealing plate 45 from the annular retaining ring 65, which will push the push tube 43 and push the insert installed on the insert fixing pin 42 into the mold.

[0043] Based on the above, this invention can set the fixture for picking up the part and the fixture for placing the insert on the same robotic arm, and at the same time use the air pressure change during picking up the part to install the insert into the mold of the injection molding machine. This integrates the two steps of picking up the part and placing the insert, and forms a linkage, which reduces the volume of the two fixtures for picking up the part and placing the insert, and saves the required time.

[0044] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative and not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An insert installation device for an injection molding machine, characterized in that: The system includes a robotic arm (1), which comprises a horizontal lateral arm (11) and a vertical lateral arm (12). The vertical lateral arm (12) is mounted on the horizontal lateral arm (11), and a rotating rod (2) is mounted on the vertical lateral arm (12). A part-retrieving fixture (3) and an insert mounting fixture (4) are connected to the bottom of the rotating rod (2). Both the part-retrieving fixture (3) and the insert mounting fixture (4) are mounted on a flipping structure (5). The back of the part-retrieving fixture (3) and the insert mounting fixture (4) are connected by air. The pneumatic linkage component (6) is connected, and the part-removing clamp (3) and the insert mounting clamp (4) can achieve the flipping change between horizontal and vertical states through the set flipping structure (5). The part-removing clamp (3), the insert mounting clamp (4), and the flipping structure (5) can be driven by the rotating rod (2) to make the part-removing clamp (3) and the insert mounting clamp (4) face the mold core of the mold. When the part-removing clamp (3) is clamping the injection molded product, the pneumatic linkage component (6) can make the brass insert in the insert mounting clamp (4) be in the installation state. The pneumatic linkage assembly (6) includes a first pipe (61), a second pipe (62), a side connecting pipe (63), and a piston rod (64). The first pipe (61) is connected to a suction cup (31) near the second connecting block (47), and the second pipe (62) is connected to a suction cup (31) away from the second connecting block (47). The first pipe (61) and the second pipe (62) are connected and sealed after connection. The side connecting pipe (63) is located directly behind the mounting pipe (41). The outlet of the side connecting pipe (63) is slidably connected to a push pipe (43) and sealed by the end of the push pipe (43). The side connecting pipe (63) is provided with an annular retaining ring (65). The annular retaining ring (65) and the sealing plate (45) are in separable sealing contact. The piston rod (64) is slidably connected in the pipe (61) and the side connecting pipe (63) is located behind the piston plate of the piston rod (64). The end of the piston rod (64) is connected to the push assembly (66).

2. The injection molding machine insert installation device according to claim 1, characterized in that: The horizontal lateral arm (11) includes two sets of lateral and longitudinal moving arms and is mounted on the top of the injection molding machine via a mounting base. The vertical moving arm (12) is mounted on the horizontal lateral arm (11) and can be driven by the horizontal lateral arm (11) to move freely laterally.

3. The injection molding machine insert installation device according to claim 2, characterized in that: The top of the rotating rod (2) is rotatably mounted on the vertical moving arm (12), and the top of the rotating rod (2) is connected to the output shaft of the servo motor (21), which is mounted on the vertical moving arm (12).

4. The injection molding machine insert installation device according to claim 1, characterized in that: The part removal fixture (3) includes a suction cup (31), a suction cup fixing plate (32), and a connecting block (33). The suction cup (31) is set according to the number and position of the products in the mold. The suction cup (31) is installed on the suction cup fixing plate (32). The suction cup fixing plate (32) is installed on the connecting block (33). The connecting block (33) is installed on the flipping structure (5).

5. The injection molding machine insert installation device according to claim 4, characterized in that: The insert mounting fixture (4) includes an mounting tube (41), an insert fixing pin (42), a push tube (43), and a push pin (44). The head of the mounting tube (41) is provided with an insert fixing head (411). The insert fixing pin (42) is installed in the push tube (43) and can slide freely in the push tube (43). The end of the push tube (43) is provided with a pushing end (431). The end of the insert fixing pin (42) is provided with a sealing plate (45). One end of the push pin (44) is connected to the insert fixing pin (42), and the other end is connected to the sealing plate (45). The mounting tube (41) is installed on the mounting plate (46). The mounting tube (41) is set according to the number and position of the products in the mold. The mounting plate (46) is installed on the connecting block two (47). The connecting block two (47) is installed on the flipping structure (5). The end of the insert fixing pin (42) extends 2-3mm out of the mounting tube (41).

6. The injection molding machine insert installation device according to claim 5, characterized in that: The head of the insert fixing pin (42) is provided with a spring piece (421) that holds the insert in place by elastic force.

7. The injection molding machine insert installation device according to claim 5, characterized in that: The flipping structure (5) includes a second servo motor (51), a drive shaft (52), and a flipping block (53). The second servo motor (51) is installed at the lower end of the rotating rod (2). The drive shaft (52) is rotatably installed inside the rotating rod (2). The flipping block (53) is connected to the drive shaft (52). The first connecting block (33) and the second connecting block (47) are respectively connected to two vertically adjacent sides of the flipping block (53).

8. The injection molding machine insert installation device according to claim 1, characterized in that: The pushing assembly (66) includes a cylinder (661) and a pusher (662). The cylinder (661) is fixedly mounted on the connecting block two (47). One end of the pusher (662) is mounted on the output shaft of the cylinder (661), and the other end of the pusher (662) is connected to the piston rod (64).

9. The injection molding machine insert installation device according to claim 8, characterized in that: The side connecting pipe (63) is located between the piston plate and the partition plate (68) of the piston rod (64), and the partition plate (68) and the piston rod (64) are connected by a sliding seal.

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