Injection molding part nut imbedding device

Abstract

The utility model provides the injection-molded part nut imbedding device which is compact in structure and stable in feeding. The nut feeding device comprises a nut feeding mechanical arm and a nut feeding base plate, the nut feeding mechanical arm comprises a feeding mounting plate, a driving device and a plurality of nut feeding columns, the nut feeding columns are arranged at the four ends of the feeding mounting plate, two feeding holes are formed in each nut feeding column, pushing needles are arranged in the feeding holes in a matched mode, and the nut feeding base plate is arranged on the driving device. The lower end of the push pin is provided with an adsorption face, the upper end of the nut feeding column is matched with the driving device, a plurality of nut preparation columns are arranged on the nut feeding base plate, and each nut preparation column is provided with two nut preparation grooves which correspond to the feeding holes and are provided with feeding push rods. The utility model relates to the technical field of injection molding.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a nut inserting device for an injection molded part. Background Art

[0002] Nut injection molding is a process for manufacturing plastic products with nuts. The nut is pre-placed as an insert in a mold, and then hot plastic is injected. As the plastic cools, it bonds tightly to the outer surface of the nut, imparting high torsional and pullout resistance. The result is a plastic part with internal threads that can be used to connect other components.

[0003] Chinese utility model publication number CN221437133U discloses a fully automatic nut picking and inserting robot. In this solution, a nut-gripping air gripper, coupled with an air cylinder, inserts the nut into the injection mold of a molding machine. This solution essentially solves the problem of automatically inserting nuts into injection molds, but the nut-gripping mechanism still requires a large footprint, making it unsuitable for some nut configurations that require a compact design. Therefore, the development of a compact, stable, and fast nut-gripping mechanism is highly desirable. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a nut inserting device for injection molded parts.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it includes a nut loading robot and a nut feeding chassis, the nut loading robot includes a loading mounting plate, a driving device and a plurality of nut loading columns, the plurality of nut loading columns are arranged on the lower surface of the loading mounting plate, each of the nut loading columns is provided with two loading holes, the loading holes are equipped with a push pin, the lower end of the push pin is provided with an adsorption surface, the upper end of the nut loading column is coordinated with the driving device, and the nut feeding chassis is provided with a plurality of nut preparation columns, each of the nut preparation columns is provided with two nut preparation grooves with loading push rods corresponding to the loading holes.

[0006] Based on the above, the nut loading column is provided with two loading holes. Compared with traditional manipulators that clamp nuts with jaws, the loading holes are compact and can accommodate adjacent nuts. A push pin with an adsorption surface is provided within the loading hole, and a loading push rod is provided on the nut preparation trough. When the nut loading manipulator loads nuts, the push pin is moved directly above the nut preparation trough, so that the adsorption surface contacts and adsorbs the upper surface of the nut in the nut preparation trough. Simultaneously, the loading push rod pushes upward, applying an upward thrust to the nut, making the nut loading and adsorption process more stable. After adsorption is completed, the nut loading manipulator transfers the nut to the injection molding machine. When transferring the nut to the nut placement position in the injection mold, the push pin moves forward and releases a high-pressure airflow to push the nut to the designated position. The entire mechanism uses a combination of pushing and blowing to ensure more accurate and stable nut placement, reducing accidents that result in mold scrapping due to unsuccessful nut loading and saving production costs.

[0007] Furthermore, the driving device includes a vacuum air pump and a plurality of ventilation ducts, each of the ventilation ducts corresponds to one of the feeding holes, and the vacuum air pump is provided with a support column mounted in cooperation with the upper surface of the feeding mounting plate.

[0008] Based on the above, the vacuum air pump is used to drive the push pin to generate negative pressure to adsorb the nut, or to make the push pin blow air to place the nut into the forming mold.

[0009] Furthermore, an air suction channel is provided on the lower surface of the push pin, and the air suction channel is provided around the axis of the push pin.

[0010] Based on the above, when the nut is adsorbed, the air suction channel fits the edge of the nut to form a closed space, and negative pressure is generated under the action of the vacuum air pump, thereby achieving adsorption of the nut.

[0011] Furthermore, the loading mounting plate is connected to the product unloading mounting plate through a connecting block, and a plurality of product unloading suction cups are provided on the product unloading mounting plate.

[0012] Based on the above, while the nut is injected into the injection mold of the molding machine, the product can be sucked by the product unloading suction cup and transferred to the next work process by the robot.

[0013] Furthermore, a guide rail slider and a screw slider are provided at the lower end of the nut feeding chassis, and the guide rail slider and the screw slider are respectively installed in cooperation with the guide rail and the screw.

[0014] Based on the above, the guide rail slider can stably support the nut feeding chassis, and the screw slider cooperates with the screw to drive the nut feeding chassis.

[0015] Furthermore, the loading mounting plate and the nut feeding chassis are respectively provided with a first hollow area and a second hollow area.

[0016] Based on the above, while ensuring the strength of the loading mounting plate and the nut feeding chassis, providing the first hollow area and the second hollow area can reduce weight and reduce the operating burden of the manipulator.

[0017] In order to more clearly illustrate the above features of the present invention and the objectives to be achieved, the present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : Schematic diagram of the structure of the nut loading robot and the nut feeding chassis;

[0019] Figure 2 :It is a three-dimensional picture of the nut loading robot;

[0020] Figure 3 : This is the main view of the nut loading robot;

[0021] Figure 4 :It is the bottom view of the nut loading robot;

[0022] Figure 5 :for Figure 4 Schematic diagram of the enlarged structure of part A;

[0023] Figure 6 :The three-dimensional picture of the nut feeding chassis;

[0024] Figure 7 :for Figure 6 Schematic diagram of the enlarged structure of part B;

[0025] Figure 8 : It is a partial cross-sectional view of the nut loading column;

[0026] Figure 9 : Cross-sectional view of the nut preparation column;

[0027] Figure 10 : Schematic diagram of the structure of the nut loading mounting plate and the product unloading mounting plate.

[0028] Explanation of the accompanying figures: 1 nut loading robot; 2 nut feeding chassis; 3 loading mounting plate; 4 nut loading column; 5 loading hole; 6 push pin; 6a adsorption surface; 7 driving device; 8 nut preparation column; 9 nut preparation trough; 10 loading push rod; 11 vacuum air pump; 12 ventilation duct; 13 support column; 14 suction channel; 15 connecting block; 17 product unloading mounting plate; 18 product unloading suction cup; 19 guide rail slider; 20 screw slider; 21 first hollow area; 22 second hollow area. DETAILED DESCRIPTION

[0029] like Figures 1 to 10 As shown, the nut feeding robot 1 comprises a nut feeding robot 1 and a nut feeding chassis 2. The nut feeding robot 1 includes a loading mounting plate 3 and a plurality of nut loading posts 4. The nut loading posts 4 are arranged at the four ends of the loading mounting plate 3. Each nut loading post 4 is provided with two loading holes 5, each of which is fitted with a push pin 6. The lower end of the push pin 6 is provided with a suction surface 6a, which is provided with an air suction channel 14. The air suction channel 14 is arranged around the axis of the push pin 6. The upper end of the nut loading post 4 is also equipped with a drive device 7. The drive device 7 includes a vacuum air pump 11 and a ventilation tube 12, which is connected to the push pin 6. When sucking a nut, the vacuum air pump 11 is activated to generate negative pressure on the suction surface 6a, thereby sucking the nut. When the nut is injected into the injection mold of the molding machine, the vacuum air pump 11 moves the push pin 6 forward and releases high-pressure air, thereby pushing the nut into the injection mold.

[0030] The nut feeding chassis 2 is provided with a nut preparation column 8, which is provided with a nut preparation slot 9 corresponding to the loading hole 5. The nut preparation slot 9 is provided with a loading push rod 10. The lower end of the nut feeding chassis 2 is provided with a guide rail slider 19 and a screw slider 20. The guide rail slider 19 and the screw slider 20 are respectively installed with the guide rail and the screw. The guide rail slider 19 can stably support the nut feeding chassis 2, and the screw slider 20 cooperates with the screw to drive the nut feeding chassis 2 to prepare and transport nuts.

[0031] Preferably, the loading mounting plate 3 is further connected to a product unloading mounting plate 17 via a connecting block 15. The product unloading mounting plate 17 is provided with a plurality of product unloading suction cups 18. While injecting the nut into the injection mold of the molding machine, the molded product can be removed through the product unloading suction cups 18, thereby reducing the working steps of the robot.

[0032] The specific implementation of this embodiment is as follows: when the nut loading robot 1 is loading nuts, the push pin 6 is moved to the top of the nut preparation slot 9, so that the adsorption surface 6a contacts and adsorbs the upper surface of the nut on the nut preparation slot 9, and at the same time, the loading push rod 10 pushes upward to give the nut an upward thrust, making the process of nut loading and adsorption more stable. After the adsorption is completed, the nut loading robot 1 transfers the nut to the injection molding machine, and then the product unloading suction cup 18 removes the product that has been injection molded on the injection mold. Then the robot moves the nut loading column 4 to the nut placement area, and moves the push pin 6 forward while releasing high-pressure airflow, thereby pushing the nut to the specified position. The entire mechanism cooperates with pushing and blowing to make the placement of the nut more accurate and stable, reduce the accident of mold scrapping due to unsuccessful nut loading, and save production costs.

[0033] The above description is only the optimal solution embodiment of the present invention and is not intended to limit the present invention. Various modifications or replacements of the present invention made by those skilled in the art without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A nut inserting device for injection molded parts, characterized in that: The invention comprises a nut loading manipulator (1) and a nut feeding chassis (2), wherein the nut loading manipulator (1) comprises a loading mounting plate (3), a driving device (7) and a plurality of nut loading columns (4), wherein the plurality of nut loading columns (4) are arranged on the lower surface of the loading mounting plate (3), and each of the nut loading columns (4) is provided with two loading holes (5), wherein a push pin (6) is matched in the loading hole (5), and an adsorption surface (6a) is provided at the lower end of the push pin (6), and the upper end of the nut loading column (4) is matched with the driving device (7), and the nut feeding chassis (2) is provided with a plurality of nut preparation columns (8), and each of the nut preparation columns (8) is provided with two nut preparation grooves (9) with loading push rods (10) corresponding to the loading holes (5).

2. The device for inserting a nut into an injection molded part according to claim 1, wherein: The driving device (7) includes a vacuum air pump (11) and a plurality of ventilation ducts (12), each of the ventilation ducts (12) corresponds to one of the feeding holes (5), and the vacuum air pump (11) is provided with a support column (13) which is mounted in cooperation with the upper surface of the feeding mounting plate (3).

3. The device for inserting a nut into an injection molded part according to claim 1, wherein: The adsorption surface (6a) is provided with an air suction channel (14), and the air suction channel (14) is arranged around the axis of the push pin (6).

4. The device for inserting a nut into an injection molded part according to claim 1, wherein: The loading installation plate (3) is connected to a product unloading installation plate (17) via a connecting block (15), and a plurality of product unloading suction cups (18) are provided on the product unloading installation plate (17).

5. The device for inserting a nut into an injection molded part according to claim 1, wherein: A guide rail slider (19) and a screw slider (20) are provided at the lower end of the nut feeding chassis (2), and the guide rail slider (19) and the screw slider (20) are respectively mounted in cooperation with the guide rail and the screw.

6. The device for inserting a nut into an injection molded part according to claim 1, wherein: The loading mounting plate (3) and the nut feeding chassis (2) are respectively provided with a first hollow area (21) and a second hollow area (22).

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