An automated device for automatically inserting pins and nuts.
By designing automated equipment and using a six-axis robotic arm to grip nuts and pins, the problem of missing or under-placing nuts and pins during manual operation was solved, achieving efficient automated production and improved product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SYNERGY HANIL POLYMER TECH CO LTD
- Filing Date
- 2025-12-25
- Publication Date
- 2026-07-31
AI Technical Summary
In insert molding production, manual placement of nuts and pins is prone to errors such as under-placement, omission, or incorrect placement, resulting in a high product defect rate. This is especially true when the injection mold has multiple nut insertion positions and pin insertion positions, which is difficult to effectively solve with existing technology.
Design an automated device for automatically inserting PINs and nuts. The device uses a six-axis robot to grip the nut and PIN, and through a vibratory feeder, a linear vibratory track, a material distribution mechanism, an injection mold placement position, a PIN feeding device, a six-axis robot, grippers, and suction cups, it realizes the automatic insertion and removal of nuts and PINs, thereby improving production efficiency.
It enables automated insertion and removal of nuts and pins, improving production efficiency, reducing the error rate of manual operation, and improving product quality.
Smart Images

Figure CN224576039U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of injection molding machine automation equipment, and in particular relates to an automated device for automatically inserting PIN pins and nuts. Background Technology
[0002] Insert molding is a common manufacturing process that involves pre-placing inserts into a mold and then injecting plastic. Currently, in insert molding production, for injection molded products with nuts and pins, these elements need to be manually inserted. Manual insertion and removal are time-consuming and labor-intensive, and prone to errors such as under-insertion or omission. In particular, when the injection mold has multiple nut and pin insertion positions, manual insertion easily leads to under-insertion, omission, or incorrect placement, increasing the product defect rate. Utility Model Content
[0003] In view of this, the present invention aims to propose an automated device for automatic insertion of PIN pins and nuts, which is suitable for automatic insertion of PIN pins and nuts into injection molds for injection molding machines. It realizes that a six-axis robot can grasp the nut and PIN pin and embed them into the injection mold, and then grasp the injection mold and send it into the injection molding machine for injection molding. After injection molding, the six-axis robot can take out the product and put it into the production line, thereby improving production efficiency.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] An automated device for automatically inserting PINs and nuts includes a worktable, a vibratory feeder, a linear vibratory track, a material distribution mechanism, an injection mold placement position, a PIN feeding device, a six-axis robot, grippers, and a suction cup; the six-axis robot is positioned close to the worktable, and grippers and a suction cup are mounted on the six-axis robot.
[0006] The workbench is equipped with a vibratory feeder, a linear vibratory track, a material distribution mechanism, an injection mold tray placement position, and a PIN feeding device. The vibratory feeder is connected to the linear vibratory track, and the material distribution mechanism is set at the material outlet of the linear vibratory track. The material distribution mechanism includes a material distribution cylinder, a material distribution slider, a material discharge cavity, a baffle plate, a lifting block, and a lifting cylinder. The material distribution cylinder is connected to the material distribution slider, and the material distribution slider is provided with a material discharge cavity and a baffle plate. The bottom of the lifting block is connected to a lifting cylinder, and the lifting block is provided with a nut cavity, which is correspondingly set to the material discharge cavity.
[0007] The material distribution mechanism is provided with an injection mold placement position in front of it, which includes a base for placing the injection mold; a PIN feeding device is provided on one side of the vibratory feeder, which includes an electric slide rail and a PIN tray on the electric slide rail. The electric slide rail drives the PIN tray to move back and forth, and the PIN tray is provided with multiple PIN cavities for carrying PINs.
[0008] Furthermore, a positioning post is provided on the base, and a positioning hole is provided on the injection mold, so that the positioning post can be fitted into the positioning hole.
[0009] Furthermore, the material distribution slider is provided with 2 to 6 material discharge cavities, and the lifting block is provided with 2 to 6 nut cavities, with the nut cavities corresponding to the material discharge cavities one by one.
[0010] Furthermore, the gripper includes nut claws, and there are 2 to 6 nut claws, with each nut claw corresponding to one of the unloading cavities.
[0011] Furthermore, the gripper also includes 2 to 6 PIN pin grippers, which are configured to correspond to the PIN pins placed in the PIN pin cavity.
[0012] Furthermore, the six-axis robotic arm is also provided with a first working surface and a second working surface. The first working surface is provided with grippers, and the second working surface is provided with suction cups.
[0013] Furthermore, the grippers and suction cups are positioned opposite each other.
[0014] Furthermore, the six-axis robot and the worktable are positioned close to the mold closing port of the injection molding machine.
[0015] Furthermore, it also includes a work screen and a conveyor belt, with the worktable and six-axis robot arm located inside the work screen, and the conveyor belt passing through the work screen.
[0016] Compared with existing technologies, the automated device for automatically inserting PINs and nuts described in this utility model has the following advantages:
[0017] An automated device for automatically inserting PINs and nuts comprises a worktable, vibratory feeder, linear vibration track, material distribution mechanism, injection mold placement position, PIN feeding device, six-axis robot, grippers, and suction cups. The six-axis robot grips the nut and PIN and inserts them into the injection mold, then picks up the mold and feeds it into the injection molding machine for injection molding. After molding, the six-axis robot removes the product and places it on the production line, improving production efficiency and product quality. This replaces the manual insertion of nuts and PINs and the manual removal of the molded product, thus solving the problems of insufficient, missed, or incorrect insertion of nuts and PINs that occur during manual insertion. Attached Figure Description
[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0019] Figure 1 This is a schematic diagram of the automated equipment for automatically inserting PIN pins and nuts according to an embodiment of the present invention.
[0020] Figure 2 This is a schematic diagram of the worktable and six-axis robot structure described in an embodiment of the present invention;
[0021] Figure 3 This is a schematic diagram of the workbench and its connection structure according to an embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the material distribution mechanism and its connection structure according to an embodiment of the present utility model;
[0023] Figure 5 This is a schematic diagram of the gripper and suction cup and their connection structure as described in an embodiment of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1-Workbench; 2-Injection mold; 3-Material distribution mechanism; 4-Vibrating plate; 5-PIN tray; 6-Electric slide rail; 7-Six-axis robot; 8-Base; 9-Positioning column; 10-Vertical vibration track; 11-PIN cavity; 20-Injection molding machine; 21-Working screen; 22-Screen door; 23-Conveyor belt; 24-Mold closing port; 31-Material distribution cylinder; 32-Material distribution slider; 33-Unloading cavity; 34-Baffle plate; 36-Lifting block; 37-Nut cavity; 38-Lifting cylinder; 40-Nut insertion position; 41-PIN insertion position; 42-Gripper; 43-First working surface; 44-Suction cup; 45-Second working surface. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] like Figures 1 to 4 As shown, an automated device for automatically inserting PIN pins and nuts includes a worktable 1, a vibratory feeder 4, a linear vibration track 10, a material distribution mechanism 3, an injection mold placement position, a PIN pin feeding device, a six-axis robot arm 7, grippers, and suction cups; the six-axis robot arm 7 is positioned close to the worktable, and grippers and suction cups are provided on the six-axis robot arm 7.
[0029] The workbench 1 is equipped with a vibratory feeder 4, a linear vibratory track 10, a material distribution mechanism 3, an injection mold plate placement position, and a PIN feeding device. The vibratory feeder 4 is connected to the linear vibratory track 10. The material distribution mechanism 3 is set at the outlet of the linear vibratory track 10. The material distribution mechanism 3 includes a material distribution cylinder 31, a material distribution slider 32, a material discharge cavity 33, a baffle plate 34, a lifting block 36, and a lifting cylinder 38. The material distribution cylinder 31 is connected to the material distribution slider 32. The material distribution slider 32 is provided with a material discharge cavity 33 and a baffle plate 34. The bottom of the lifting block 36 is connected to the lifting cylinder 38. The lifting block 36 is provided with a nut cavity 37, which is correspondingly set with the material discharge cavity 33.
[0030] The material distribution mechanism 3 is provided with an injection mold placement position in front of it, which includes a base 8 for placing the injection mold 2. A PIN feeding device is provided on one side of the vibratory feeder 4. The PIN feeding device includes an electric slide rail 6 and a PIN tray 5 mounted on the electric slide rail 6. The electric slide rail drives the PIN tray to reciprocate. The PIN tray 5 has multiple PIN cavities 11 for carrying PINs. The injection mold 2 has nut insertion positions 40 and PIN insertion positions 41 for inserting nuts and PINs, respectively.
[0031] like Figure 1 As shown, this embodiment is based on an injection molding machine 20, which has a mold closing port 24. The grippers are double-cylinder type grippers, which can be used to grip PIN pins, nuts, and injection molds 2. The suction cup is used to pick up the injection mold 2 from the mold closing port 24.
[0032] The base 8 is provided with a positioning post 9, and the injection mold 2 has a positioning hole, into which the positioning post 9 can be fitted. The injection mold 2 is placed on the base 8, and the positioning post 9 fits into the positioning hole, serving a positioning function to ensure the accuracy of automatic insertion of the PIN and nut.
[0033] In this preferred embodiment, the material distribution slider 32 is provided with 2 to 6 feeding cavities 33, and the lifting block 36 is provided with 2 to 6 nut cavities 37, with each nut cavity 37 corresponding to a feeding cavity 33. This allows the material distribution slider 32 to carry multiple nuts, supporting multiple grippers to simultaneously grasp multiple nuts.
[0034] The gripper includes nut grippers, and there are 2 to 6 nut grippers, each corresponding to one of the unloading cavities 33. By setting 2 to 6 nut grippers, 2 to 6 nuts can be gripped simultaneously, improving the efficiency of nut insertion.
[0035] The gripper also includes 2 to 6 PIN needle grippers, which are configured to correspond to the PIN needles placed in the PIN needle cavity 11. By providing 2 to 6 PIN needle grippers, 2 to 6 PIN needles can be gripped simultaneously, improving the efficiency of PIN needle implantation.
[0036] like Figure 5 As shown, the six-axis robot 7 is also provided with a first working surface 43 and a second working surface 45. The first working surface 43 is provided with a gripper 42, and the second working surface 45 is provided with a suction cup 44. The gripper 42 and the suction cup 44 are arranged opposite to each other. The first working surface and the second working surface are arranged as opposite sides, which are parallel to each other. Rotating to the first working surface drives the gripper to grip the PIN pin 41, the nut 40 and the injection mold 2; rotating to the second working surface drives the suction cup to pick up the injection mold 2 from the mold closing port 24. Thus, a six-axis robot 7 can automatically insert the PIN pin and nut into the injection mold 2, load the injection mold 2 into the injection molding machine, and after injection molding, the six-axis robot 7 uses the suction cup to pick up the injection mold 2 from the mold closing port 24 for unloading.
[0037] like Figure 1 As shown, the six-axis robot 7 and the worktable 1 are positioned near the mold closing port 24 of the injection molding machine 20. It also includes a work screen 21 and a conveyor belt 23. The worktable 1 and the six-axis robot 7 are located inside the work screen 21, and the conveyor belt 23 passes through the work screen 21. The work screen 21 is also equipped with a screen door for workers to enter and exit. The work screen forms a protective barrier, improving safety; the overall layout is reasonable, reducing floor space; the six-axis robot 7 uses a suction cup to pick up the injection mold 2 from the mold closing port 24, completes the unloading, and places the injection mold 2 on the conveyor belt 23 for transport to the next workstation, which can be used in conjunction with the existing conveyor belt 23 in the workshop.
[0038] The working principle of an automated device for automatically inserting PIN pins and nuts is as follows: First, the nut is fed to the dispensing mechanism 3 by the vibrating plate 4 via the linear vibrating track 10. The dispensing cylinder 31 of the dispensing mechanism 3 drives the dispensing slider 32 to move back and forth. When the unloading cavity 33 is aligned with the discharge port of the linear vibrating track 10, the nut is pushed into the unloading cavity 33. The unloading cavity 33 moves the nut away, and the baffle plate 34 blocks the discharge port of the linear vibrating track 10. The lifting cylinder 38 drives the lifting block 36 to rise, pushing the nut upward, and the nut is ejected from the unloading cavity 33. Then, the six-axis robot 7 is activated to use the grippers... The nut is clamped and placed into the nut insertion position 40 of the injection mold 2, completing the nut insertion; the electric slide rail 6 drives the PIN tray 5 to move forward to the front end of the worktable, and the six-axis robot 7 is started to clamp the PIN on the PIN tray 5 with the gripper and place it into the PIN insertion position 41 on the injection mold 2, completing the PIN insertion; finally, the six-axis robot 7 is started to clamp the injection mold 2 with the gripper and send it into the injection molding machine for injection molding. After the injection molding is completed, the six-axis robot 7 is started to pick up the injection mold 2 from the mold closing port 24 with the suction cup and place it on the conveyor belt 23 of the production line.
[0039] An automated device for automatically inserting PINs and nuts comprises a worktable, a vibratory feeder, a linear vibratory track, a material distribution mechanism, an injection mold placement position, a PIN feeding device, a six-axis robot, grippers, and suction cups. The six-axis robot can pick up and grip nuts and PINs, insert them into the injection mold, and after injection molding, remove the product by the six-axis robot and place it on the production line. This six-axis robot frees up human hands and improves production efficiency.
[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automated device for automatically inserting PINs and nuts, characterized in that: It includes a worktable (1), a vibratory feeder (4), a linear vibratory track (10), a material distribution mechanism (3), an injection mold placement position, a PIN feeding device, a six-axis robot (7), grippers, and a suction cup; the six-axis robot (7) is located close to the worktable, and grippers and a suction cup are provided on the six-axis robot (7); The workbench (1) is equipped with a vibratory feeder (4), a linear vibratory track (10), a material distribution mechanism (3), an injection mold plate placement position, and a PIN needle feeding device. The vibratory feeder (4) is connected to the linear vibratory track (10). The material distribution mechanism (3) is set at the outlet of the linear vibratory track (10). The material distribution mechanism (3) includes a material distribution cylinder (31), a material distribution slider (32), a material discharge cavity (33), a baffle plate (34), a lifting block (36), and a lifting cylinder (38). The material distribution cylinder (31) is connected to the material distribution slider (32). The material distribution slider (32) is equipped with a material discharge cavity (33) and a baffle plate (34). The bottom of the lifting block (36) is connected to the lifting cylinder (38). The lifting block (36) is equipped with a nut cavity (37). The nut cavity (37) is correspondingly set with the material discharge cavity (33). The material distribution mechanism (3) is provided with an injection mold placement position in front of it. The injection mold placement position includes a base (8) for placing the injection mold (2). The vibratory feeder (4) is provided with a PIN feeding device on one side. The PIN feeding device includes an electric slide rail (6) and a PIN tray (5) on the electric slide rail (6). The electric slide rail drives the PIN tray to move back and forth. The PIN tray (5) is provided with multiple PIN cavities (11) for carrying PINs.
2. The automated device for automatically inserting PINs and nuts according to claim 1, characterized in that: The base (8) is provided with a positioning post (9), and the injection mold (2) is provided with a positioning hole. The positioning post (9) can be fitted into the positioning hole.
3. The automated device for automatically inserting PINs and nuts according to claim 1, characterized in that: The material distribution slider (32) is provided with 2 to 6 material discharge cavities (33), and the lifting block (36) is provided with 2 to 6 nut cavities (37). The nut cavities (37) and the material discharge cavities (33) are provided in a one-to-one correspondence.
4. The automated device for automatically inserting PINs and nuts according to claim 3, characterized in that: The gripper includes a nut gripper, and there are 2 to 6 nut grippers. The nut grippers are configured in a one-to-one correspondence with the unloading cavity (33).
5. The automated device for automatically inserting PINs and nuts according to claim 4, characterized in that: The gripper also includes 2 to 6 PIN pin grippers, which are configured to correspond to the PIN pins placed in the PIN pin cavity (11).
6. The automated device for automatically inserting PINs and nuts according to claim 1, characterized in that: The six-axis manipulator (7) is also provided with a first working surface (43) and a second working surface (45). The first working surface (43) is provided with a gripper (42), and the second working surface (45) is provided with a suction cup (44).
7. The automated device for automatically inserting PINs and nuts according to claim 6, characterized in that: The gripper (42) and the suction cup (44) are arranged opposite to each other.
8. The automated device for automatically inserting PINs and nuts according to claim 1, characterized in that: The six-axis robot (7) and the worktable (1) are positioned close to the mold opening (24) of the injection molding machine (20).
9. The automated device for automatically inserting PIN pins and nuts according to claim 1, characterized in that: It also includes a work screen (21) and a conveyor belt (23), wherein the worktable (1) and the six-axis robot (7) are located inside the work screen (21), and the conveyor belt (23) passes through the work screen (21).