Automatic injection molding system capable of efficiently embedding annular insert

Abstract

The utility model discloses an automatic injection molding system capable of efficiently embedding an annular insert. The automatic injection molding system comprises a multi-degree-of-freedom manipulator, an injection molding machine and an insert sequencing machine, wherein the injection molding machine and the insert sequencing machine are arranged around the multi-degree-of-freedom manipulator. By adopting the automatic injection molding system capable of efficiently embedding the annular inserts, the depths of the push rods in the corresponding expansion cylinders can be synchronously controlled through the push rod driving cylinders, so that the expansion sheets of the expansion cylinders are synchronously expanded or synchronously retracted, and therefore, all the annular inserts on the insert placing table can be synchronously grabbed; and under the driving of the multi-degree-of-freedom manipulator, all the annular inserts can be transferred to appointed positions in the injection mold and are synchronously released, so that the automatic injection molding system only needs to adaptively adjust the number and the positions of the expansion cylinders on the jig bracket no matter how many the annular inserts are, and the production efficiency is greatly improved. And grabbing, transferring and embedding actions of all the annular inserts can be completed at a time, so that the embedding efficiency of the annular inserts is greatly improved, and the production takt is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic injection molding equipment, in particular to an automatic injection molding system capable of efficiently embedding annular inserts. Background Art

[0002] With the rapid advancement of automation technology, more and more factories have begun to use fully automatic injection molding systems to produce injection molded parts. Some injection molded parts need to be pre-embedded with ring inserts such as nuts in the injection mold before injection molding. Therefore, a fully automatic injection molding system has emerged, which uses a multi-degree-of-freedom manipulator to grab the ring inserts on the insert sorting machine one by one and pre-embed them into the injection mold.

[0003] Please refer to the Chinese utility model patent with publication number CN219947119U. Due to the fixture structure design problem of the multi-degree-of-freedom manipulator, finger cylinders are usually used to grasp the annular inserts, so only one annular insert can be grasped at a time. If a large number of annular inserts need to be pre-embedded in the injection mold each time, the efficiency of embedding the annular inserts will be extremely low, seriously affecting the production rhythm.

[0004] Solving the above problems has become a top priority. Utility Model Content

[0005] In order to solve the technical problem that the fixture of the existing multi-degree-of-freedom manipulator can only grab one annular insert at a time, resulting in low embedding efficiency of the annular insert, the utility model provides an automated injection molding system that can efficiently embed the annular insert.

[0006] The technical solution is as follows:

[0007] The first aspect of the present application relates to an automated injection molding system capable of efficiently embedding annular inserts, comprising a multi-degree-of-freedom manipulator and an injection molding machine and an insert sorting machine arranged around the multi-degree-of-freedom manipulator, the insert sorting machine being capable of placing a plurality of annular inserts on an insert placing table, the end of the multi-degree-of-freedom manipulator being connected to a jig bracket of a multi-insert grasping and placing jig, the jig bracket being provided with a plurality of expansion cylinders corresponding one-to-one to each annular insert on the insert placing table, the jig bracket being provided with a push rod driving cylinder for driving a push rod mounting plate, the end of each expansion cylinder away from the push rod mounting plate being reduced in diameter to form a plurality of expansion sheets distributed in an annular shape, the push rod mounting plate being provided with a plurality of push rods which are inserted into each expansion cylinder in a one-to-one correspondence, the push rod driving cylinder being capable of driving the push rod mounting plate to approach or away from each expansion cylinder, thereby controlling the expansion sheets of each expansion cylinder to expand or retract synchronously through each push rod, so as to synchronously fix or release each annular insert.

[0008] The above-mentioned automated injection molding system capable of efficiently embedding annular inserts can synchronously control the depth of each push rod in the corresponding expansion tube by driving the push rod to drive the cylinder, so as to realize the synchronous expansion or synchronous retraction of the expansion plates of each expansion tube, so as to synchronously grab all the annular inserts on the insert display table, and can also be driven by a multi-degree-of-freedom manipulator to transport all the annular inserts to the designated position in the injection mold and release them synchronously. Therefore, no matter how many annular inserts there are, the automated injection molding system only needs to adaptively adjust the number and position of the expansion tubes on the jig bracket, and can complete the grabbing, transporting and embedding actions of all annular inserts at one time, which greatly improves the embedding efficiency of the annular inserts and speeds up the production rhythm.

[0009] In some embodiments, the outer end of the piston rod of the push rod driving cylinder is fixedly connected to the fixture bracket through a connecting plate, and the cylinder body of the push rod driving cylinder is fixedly connected to the push rod mounting plate.

[0010] In some embodiments, the jig bracket includes an expansion cylinder mounting plate, a quick-change joint mounting plate parallel to the expansion cylinder mounting plate, and a bracket connector fixedly connected between the expansion cylinder mounting plate and the quick-change joint mounting plate, each expansion cylinder is inserted through the expansion cylinder mounting plate, a jig quick-change joint is installed on the quick-change joint mounting plate, and a manipulator quick-change joint connection connected to the jig quick-change joint is installed at the end of the multi-degree-of-freedom manipulator.

[0011] In some embodiments, the insert sorting machine includes an insert sorting and feeding mechanism for outputting annular inserts one by one and a three-axis robot for transferring the annular inserts output by the insert sorting and feeding mechanism to the insert placement table one by one. The insert sorting and feeding mechanism includes a material box, a direct vibration for outputting the annular inserts in the material box one by one, and an insert waiting table arranged at the end of the direct vibration. The three-axis robot can transfer the annular inserts on the insert waiting table to the insert placement table.

[0012] In some embodiments, a safety enclosure is further included, and the injection molding machine and the insert sorting machine are both located inside the safety enclosure.

[0013] In some embodiments, an electric control cabinet is further included, and a notch for the electric control cabinet matching the electric control cabinet is opened on the safety enclosure, and the electric control cabinet is arranged at the notch of the electric control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the automated injection molding system from one perspective;

[0015] Figure 2 This is a structural diagram of the automated injection molding system from another perspective;

[0016] Figure 3This is a structural diagram of a multi-insert pick-and-place fixture from one perspective;

[0017] Figure 4 This is a structural diagram of the multi-insert pick-and-place fixture from another perspective;

[0018] Figure 5 It is a schematic diagram of the coordination relationship between the multi-DOF manipulator and the multi-insert pick-and-place fixture;

[0019] Figure 6 It is a structural schematic diagram of the insert sorting machine;

[0020] Figure 7 It is a structural diagram of the insert sorting and feeding mechanism. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with embodiments and drawings.

[0022] like Figure 1-Figure 6 As shown, an automated injection molding system capable of efficiently embedding annular inserts mainly includes a multi-degree-of-freedom manipulator 1, an injection molding machine 2 and an insert sorting machine 3 arranged around the multi-degree-of-freedom manipulator 1. The insert sorting machine 3 is used to output the annular inserts one by one, and can place multiple annular inserts on the insert placement table 3b. The end of the multi-degree-of-freedom manipulator 1 is connected to the fixture bracket 4b of the multi-insert grasping and placing fixture 4, so that the multi-insert grasping and placing fixture 4 can be controlled to simultaneously grasp multiple annular inserts placed on the insert placement table 3b, and these annular inserts are simultaneously transferred to the injection mold of the injection molding machine 2.

[0023] Specifically, the jig bracket 4b is provided with a plurality of expansion tubes 4c corresponding to the annular inserts on the insert placement table 3b, and the jig bracket 4b is provided with a push rod driving cylinder 4d for driving the push rod mounting plate 4e. The end of each expansion tube 4c away from the push rod mounting plate 4e is reduced in diameter to form a plurality of expansion plates 4c1 distributed in an annular shape, that is, the end of the expansion tube 4c away from the push rod mounting plate 4e is integrally formed with a plurality of expansion plates 4c1, and the expansion plates 4c1 together constitute an annular structure having a diameter smaller than that of the expansion tube 4c.

[0024] At the same time, a plurality of push rods 4f are installed on the push rod mounting plate 4e, which are inserted into each expansion tube 4c one by one. The push rod driving cylinder 4d can drive the push rod mounting plate 4e to approach or move away from each expansion tube 4c, so as to control the expansion pieces 4c1 of each expansion tube 4c to expand or retract synchronously through each push rod 4f, so as to synchronously fix or release each annular insert, that is: when the push rod 4f is inserted deeper, it can expand each expansion piece 4c1 of the expansion tube 4c, so that each expansion piece 4c1 presses against the annular insert; when the push rod 4f retreats, each expansion piece 4c1 of the expansion tube 4c retracts and resets, so as to release each annular insert and let the annular insert fall downward.

[0025] Therefore, when the multi-degree-of-freedom manipulator 1 drives the multi-insert grasping and placing jig 4 to move to the insert placement table 3b, it can synchronously control the depth of each push rod 4f in the corresponding expansion tube 4c through the push rod driving cylinder 4d to achieve the synchronous expansion or synchronous retraction of the expansion sheet 4c1 of each expansion tube 4c, so that all the annular inserts on the insert placement table 3b can be synchronously grasped, and all the annular inserts can be transported to the designated position in the injection mold and released synchronously under the drive of the multi-degree-of-freedom manipulator 1. Therefore, no matter how many annular inserts there are, the automated injection molding system only needs to adaptively adjust the number and position of the expansion tubes 4c on the jig bracket 4b, and can complete the grasping, transportation and embedding actions of all annular inserts at one time, which greatly improves the embedding efficiency of the annular inserts and speeds up the production rhythm.

[0026] In this embodiment, the outer end of the piston rod of the push rod driving cylinder 4d is fixedly connected to the fixture bracket 4b through the connecting plate 4g, and the cylinder body of the push rod driving cylinder 4d is fixedly connected to the push rod mounting plate 4e, which not only ensures the reliable installation of the push rod driving cylinder 4d, but also can stably and reliably control the stroke of each push rod 4f synchronously.

[0027] See also Figure 3-Figure 5 The jig bracket 4b includes an expansion tube mounting plate 4b1, a quick-change joint mounting plate 4b2 parallel to the expansion tube mounting plate 4b1, and a bracket connector 4b3 fixedly connected between the expansion tube mounting plate 4b1 and the quick-change joint mounting plate 4b2. Each expansion tube 4c is penetrated by the expansion tube mounting plate 4b1, and a jig quick-change joint 4a is installed on the quick-change joint mounting plate 4b2. The end of the multi-degree-of-freedom manipulator 1 is installed with a manipulator quick-change joint 1a connected to the jig quick-change joint 4a, which not only ensures the fast and reliable connection between the multi-degree-of-freedom manipulator 1 and the multi-insert grasping and placing jig 4, but also facilitates replacement.

[0028] Furthermore, the bracket connector 4b3 is in an "n" shape or an "L" shape, which can effectively improve the reliability and structural strength of the connection with the expansion tube mounting plate 4b1 and the quick-change connector mounting plate 4b2.

[0029] See also Figure 6 and Figure 7 The insert sorting machine 3 includes an insert sorting feeding mechanism 3a for outputting annular inserts one by one and a three-axis manipulator 3c for transferring the annular inserts outputted by the insert sorting feeding mechanism 3a to the insert placing table 3b one by one. That is, after the insert sorting feeding mechanism 3a delivers the annular inserts one by one, the three-axis manipulator 3c transfers the annular inserts delivered by the insert sorting feeding mechanism 3a to the insert placing table 3b one by one, which is simple and reliable.

[0030] See also Figure 1 and Figure 2The injection mold of the injection molding machine 2 in this embodiment adopts a turntable structure, on which a plurality of lower molds distributed along the circumferential direction are arranged, and there is only one upper mold. When the lower mold with the embedded insert is transferred to the bottom of the upper mold by the turntable, the upper mold covers the lower mold and starts the injection molding process. The remaining lower molds are in the waiting position and the embedding position.

[0031] It should be pointed out that the three-axis robot 3c includes an x-axis electric linear module, a y-axis electric linear module, a z-axis electric linear module and a finger cylinder. The finger cylinder can flexibly adjust its position under the drive of the x-axis electric linear module, the y-axis electric linear module and the z-axis electric linear module. The finger cylinder is used to grasp or release the annular insert.

[0032] In this embodiment, the insert sorting machine 3 also includes a machine table 3d, the insert sorting feeding mechanism 3a and the insert placing table 3b are both installed on the machine table 3d, the three-axis manipulator 3c also includes a gantry, and x-axis electric linear modules are arranged on both sides of the three-axis manipulator 3c. The gantry can translate along the x-direction driven by the two x-direction electric linear modules, and a y-direction electric linear module is arranged on the crossbeam of the gantry. The z-direction electric linear module can translate along the y-direction driven by the y-direction electric linear module, and the finger cylinder is installed on the slide of the z-direction electric linear module, so that it can translate along the z-direction driven by the z-direction electric linear module.

[0033] Furthermore, the machine platform 3d is installed on the top of the cabinet 3e, and the bottom of the cabinet 3e is also provided with a plurality of universal wheels 3h and a plurality of support legs 3i that can be raised and lowered. When the insert sorting machine 3 needs to be moved, the length of each support leg 3i is shortened so that the insert sorting machine 3 is supported by each universal wheel 3h, and the insert sorting machine 3 can be flexibly inserted. After moving to the right position, the length of each support leg 3i is lengthened so that the insert sorting machine 3 is supported by each support leg 3i, which is stable and reliable.

[0034] In this embodiment, the insert sorting and feeding mechanism 3a includes a material box 3a1, a direct vibration 3a2 for outputting the annular inserts in the material box 3a1 one by one, and an insert waiting platform 3a3 arranged at the end of the direct vibration 3a2. The three-axis manipulator 3c can transfer the annular inserts on the insert waiting platform 3a3 to the insert placement platform 3b. That is, the annular inserts in the material box 3a1 are transported one by one to the insert waiting platform 3a3 in an orderly manner through the direct vibration 3a2, waiting to be grasped by the finger cylinder, which is simple and reliable.

[0035] Furthermore, an infrared detection sensor 3a4 is provided next to the insert waiting platform 3a3, which can accurately detect whether there is an annular insert to be grasped on the insert waiting platform 3a3.

[0036] See also Figure 1 and Figure 2This embodiment also includes a safety enclosure 5 and an electric control cabinet 6. The injection molding machine 2 and the insert sorting machine 3 are both located inside the safety enclosure 5. This design ensures the safety of production.

[0037] At the same time, an electric control cabinet notch 5 a adapted to the electric control cabinet 6 is provided on the safety enclosure 5 , and the electric control cabinet 6 is arranged at the electric control cabinet notch 5 a , which can facilitate the staff to operate the electric control cabinet 6 .

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. An automated injection molding system capable of efficiently embedding annular inserts, comprising a multi-degree-of-freedom manipulator (1) and an injection molding machine (2) and an insert sorting machine (3) arranged around the multi-degree-of-freedom manipulator (1), wherein the insert sorting machine (3) is capable of placing a plurality of annular inserts on an insert placing table (3b), and the end of the multi-degree-of-freedom manipulator (1) is connected to a fixture support (4b) of a multi-insert grasping and placing fixture (4), characterized in that: The jig bracket (4b) is provided with a plurality of expansion tubes (4c) corresponding to the annular inserts on the insert placement table (3b), and a push rod driving cylinder (4d) for driving the push rod mounting plate (4e) is installed on the jig bracket (4b). The end of each expansion tube (4c) away from the push rod mounting plate (4e) is reduced in diameter to form a plurality of expansion plates (4c1) distributed in an annular shape. The push rod mounting plate (4e) is provided with a plurality of push rods (4f) correspondingly inserted into each expansion tube (4c). The push rod driving cylinder (4d) can drive the push rod mounting plate (4e) to approach or move away from each expansion tube (4c), thereby controlling the expansion plates (4c1) of each expansion tube (4c) to expand or retract synchronously through each push rod (4f) to synchronously fix or release each annular insert.

2. The automated injection molding system capable of efficiently embedding annular inserts according to claim 1, characterized in that: The outer end of the piston rod of the push rod driving cylinder (4d) is fixedly connected to the fixture bracket (4b) via a connecting plate (4g), and the cylinder body of the push rod driving cylinder (4d) is fixedly connected to the push rod mounting plate (4e).

3. The automated injection molding system capable of efficiently embedding annular inserts according to claim 2, characterized in that: The jig bracket (4b) comprises an expansion tube mounting plate (4b1), a quick-change joint mounting plate (4b2) parallel to the expansion tube mounting plate (4b1), and a bracket connector (4b3) fixedly connected between the expansion tube mounting plate (4b1) and the quick-change joint mounting plate (4b2); each expansion tube (4c) is inserted into the expansion tube mounting plate (4b1); a jig quick-change joint (4a) is mounted on the quick-change joint mounting plate (4b2); and a manipulator quick-change joint (1a) connected to the jig quick-change joint (4a) is mounted at the end of the multi-degree-of-freedom manipulator (1).

4. The automated injection molding system capable of efficiently embedding annular inserts according to claim 1, characterized in that: The insert sorting machine (3) comprises an insert sorting feeding mechanism (3a) for outputting annular inserts one by one, and a three-axis manipulator (3c) for transferring the annular inserts outputted by the insert sorting feeding mechanism (3a) one by one to an insert placement table (3b); the insert sorting feeding mechanism (3a) comprises a material box (3a1), a direct vibration (3a2) for outputting the annular inserts in the material box (3a1) one by one, and an insert waiting table (3a3) arranged at the end of the direct vibration (3a2); the three-axis manipulator (3c) is capable of transferring the annular inserts on the insert waiting table (3a3) to the insert placement table (3b).

5. The automated injection molding system capable of efficiently embedding annular inserts according to claim 1, characterized in that: It also includes a safety enclosure (5), and the injection molding machine (2) and the insert sorting machine (3) are both located inside the safety enclosure (5).

6. The automated injection molding system capable of efficiently embedding annular inserts according to claim 5, characterized in that: It also comprises an electric control cabinet (6), the safety enclosure (5) is provided with an electric control cabinet notch (5a) adapted to the electric control cabinet (6), and the electric control cabinet (6) is arranged at the electric control cabinet notch (5a).

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