Material taking claw for multi-procedure injection molding machining

Abstract

The utility model provides a material taking claw for multi-process injection molding processing, which is arranged on an operation mechanical arm of an injection molding machine and comprises a clamp plate, and the clamp plate is provided with a material taking part for grabbing an injection molding piece from a mold of the injection molding machine and a material loading part for placing the injection molding piece in the mold of the injection molding machine; the loading part comprises a loading clamping jaw mechanism, a pressing plate arranged on the periphery of the clamping jaw mechanism, a guide column installed on the end face of the clamp plate and a spring arranged outside the guide column, the pressing plate is arranged outside the guide column in a sleeving mode and slides in the axial direction of the guide column, and the spring pushes the pressing plate outwards; according to the material taking claw, the two functional parts of the material taking part and the material loading part are arranged, so that the material taking effect and the material loading effect can be achieved on one material taking claw, the situation that multiple sets of devices are adopted for operation is avoided, potential interference is avoided, the device switching procedure is avoided, and the operation efficiency of feeding and discharging is improved.

Description

Technical Field

[0001] This utility model relates to the field of automatic loading and unloading in injection molding, and in particular to a material handling claw for multi-stage injection molding. Background Technology

[0002] Multi-stage injection molding refers to the process of making an injection molded part through multiple processing steps. It usually involves placing a pre-molded injection molded part into the mold of an injection molding machine and further molding it to obtain a new injection molded part.

[0003] Therefore, during injection molding, the material handling claws responsible for loading and unloading need to remove the original injection molded parts from the mold and install the injection molded parts to be processed. In the existing technology, multiple sets of robotic claws are required to operate them separately. On the one hand, the operation is complicated and prone to interference. On the other hand, the equipment is complex, occupies a large space, and has low operating efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing automated loading and unloading structure for multi-stage injection molding is complex and has low operating efficiency. This utility model provides a material handling claw for multi-stage injection molding to solve the above problems.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a material-grabbing claw for multi-process injection molding, installed on the operating robotic arm of an injection molding machine, including a clamping plate, wherein the clamping plate is provided with a material-grabbing part for grabbing injection molded parts from the injection molding machine mold and a material-loading part for placing injection molded parts into the injection molding machine mold; the material-loading part includes a material-loading claw mechanism, a pressure plate disposed on the outer periphery of the claw mechanism, a guide post installed on the end face of the clamping plate and a spring disposed on the outside of the guide post, the pressure plate is sleeved on the outside of the guide post and slides along the axial direction of the guide post, and the spring pushes the pressure plate outward; the pressure plate can press tightly against the end face of the injection molded part.

[0006] Furthermore: the loading jaw mechanism includes an inner clamping mounting base, inner jaws, a connecting rod, and a sliding rod. The inner clamping mounting base is fixedly disposed on the end face of the clamping plate. A plurality of inner jaws are arranged circumferentially and hingedly mounted on the inner clamping mounting base. The sliding rod slides through the inner clamping mounting base. An inner clamping cylinder for driving the sliding rod to slide is provided at the end of the sliding rod. One end of the connecting rod is hingedly mounted on the inner jaws, and the other end is hingedly mounted on the sliding rod.

[0007] Furthermore: the material handling part includes an outer clamping mounting base and an outer clamping claw. Several outer clamping claws are arranged on the outer clamping mounting base in a circumferential direction. The outer clamping claws move radially under the drive of the outer clamping cylinder in order to grip the injection molded part.

[0008] Furthermore, the back of the fixture plate is provided with a slewing bearing hole for connection with the operating robotic arm of the injection molding machine.

[0009] The beneficial effects of this utility model are that the material picking claw of this utility model for multi-process injection molding has two functional parts, a material picking part and a material loading part, so that a single material picking claw can have both material picking and loading effects, avoiding the use of multiple sets of devices, eliminating potential interference and avoiding device switching processes, and improving the efficiency of loading and unloading operations. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the material-grabbing claw of this utility model used in multi-process injection molding.

[0012] Figure 2 yes Figure 1 A magnified view of section A in the image.

[0013] In the diagram: 1. Fixture plate; 2. Material handling section; 3. Loading section; 4. Pressure plate; 5. Guide post; 6. Spring; 7. Injection molded part; 8. Inner clamping mounting base; 9. Inner clamping claw; 10. Connecting rod; 11. Sliding rod; 12. Inner clamping cylinder; 13. Outer clamping mounting base; 14. Outer clamping claw; 15. Outer clamping cylinder; 16. Rotary bearing hole. Detailed Implementation

[0014] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0016] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0018] like Figure 1 , 2 As shown, this utility model provides a material-grabbing claw for multi-stage injection molding, which is installed on the operating robotic arm of an injection molding machine. It includes a clamping plate 1, on which a material-grabbing part 2 for grabbing injection molded parts 7 from the injection molding machine mold and a material-loading part 3 for placing injection molded parts 7 into the injection molding machine mold are provided. The material-loading part 3 includes a material-loading claw mechanism, a pressure plate 4 disposed on the outer periphery of the claw mechanism, a guide post 5 installed on the end face of the clamping plate 1, and a spring 6 disposed on the outside of the guide post 5. The pressure plate 4 is sleeved on the outside of the guide post 5 and slides along the axial direction of the guide post 5. The spring 6 pushes the pressure plate 4 outward. The pressure plate 4 can press against the end face of the injection molded part 7.

[0019] This material handling gripper is used in multi-stage injection molding processes. In this scenario, the gripper first removes the molded part 7 from the injection molding machine mold, then installs a new molded part 7 that requires multiple injection stages. The mold then closes for injection molding. After completion, the mold opens, and the gripper removes the finished molded part 7, thus completing one work cycle. This technical solution uses a single gripper to integrate loading and unloading operations, reducing process changeover time and improving operational efficiency.

[0020] Therefore, the material-grabbing claw of this application has two parts: a material-grabbing part 2 for taking out the injection molded part 7 and a material-loading part 3 for placing the injection molded part 7. The material-loading part 3 uses a material-loading claw mechanism to clamp the injection molded part 7. After the material-loading claw mechanism places the injection molded part 7 into the injection molding machine mold, the material-grabbing claw continues to move towards the mold. The pressure plate 4 presses the end face of the injection molded part 7 to continue pressing the injection molded part 7 into the mold to ensure that it is pressed in place. After completion, the material-grabbing claw retracts, the spring 6 pushes the pressure plate 4 to reset, and the material-loading claw mechanism continues to clamp the next injection molded part 7.

[0021] The pressure plate 4 can slide along the guide post 5 and be pushed by the spring 6. This makes the contact surface between the pressure plate 4 and the injection molded part 7 have a certain buffer when the pressure plate 4 presses the end face of the injection molded part 7, avoiding hard-on-hard pushing, which can prevent damage to the injection molded part 7 and improve the assembly quality of the injection molded part 7.

[0022] The loading clamping mechanism includes an inner clamping mounting base 8, inner clamping claws 9, a connecting rod 10, and a sliding rod 11. The inner clamping mounting base 8 is fixedly disposed on the end face of the clamping plate 1. Several inner clamping claws 9 are arranged circumferentially and hingedly mounted on the inner clamping mounting base 8. The sliding rod 11 slides through the inner clamping mounting base 8. An inner clamping cylinder 12 for driving the sliding rod 11 to slide is provided at the end of the sliding rod 11. One end of the connecting rod 10 is hingedly mounted on the inner clamping claws 9, and the other end is hingedly mounted on the sliding rod 11.

[0023] The loading chuck mechanism works by being driven by the inner chuck cylinder 12. The sliding rod 11 can move axially, and the connecting rod 10 hinged on the sliding rod 11 will rotate and drive the inner chuck 9 hinged on the inner chuck mounting seat 8 to swing. When several inner chucks 9 swing in unison, the operation of the workpiece is realized.

[0024] An internal clamping cylinder 12 pushes the sliding rod 11 to move axially, which in turn drives the internal clamping claws 9 to open and close around the hinge point via the connecting rod 10, thereby achieving the gripping or release of the inner hole. Simultaneously, the internal clamping claws 9 are distributed circumferentially, which improves the uniformity of gripping force. This method is convenient to control, has a simple structure, and can effectively handle small-diameter inner holes.

[0025] The material handling part 2 includes an outer clamping mounting base 13 and an outer clamping claw 14. Several outer clamping claws 14 are arranged on the outer clamping mounting base 13 in a circumferential direction. The outer clamping claws 14 move radially under the drive of the outer clamping cylinder 15 in order to grip the injection molded part 7.

[0026] Unlike the loading claw mechanism which grips the inner hole, the picking part 2 grips the outer circle of the injection molded part 7. Therefore, the picking part 2 has a larger working space. Thus, the outer claw 14 is driven by the outer claw cylinder 15. The outer claw cylinder 15 can be implemented by a more common finger cylinder. The distribution of several outer claws 14 along the circumference also increases the stability and reliability of gripping, enabling efficient gripping of the injection molded part 7.

[0027] The back of the clamping plate 1 is provided with a slewing bearing hole 16 for connecting to the operating robotic arm of the injection molding machine. The operating robotic arm of the injection molding machine is installed at the slewing bearing hole 16, so that the picking claw can rotate along the slewing bearing hole 16. When picking up or placing material on the injection molding machine mold, the clamping plate 1 is in a vertical state, and the picking part 2 and the loading part 3 are arranged vertically, which facilitates the quick switching of the picking and placing process. After the injection molding machine mold operation is completed, the operating robotic arm moves to the receiving platform of the injection molded part 7, and the picking claw rotates along the slewing bearing hole 16 to change the clamping plate 1 to a horizontal state. At this time, it is convenient to place the injection molded part 7 held on the picking part 2 that has been picked up from the mold back into place, and it is also convenient for the loading part 3 to hold new injection molded parts 7 that are to be further injection molded.

[0028] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A material handling gripper for multi-stage injection molding, mounted on the operating robotic arm of an injection molding machine, comprising a clamping plate (1), characterized in that: The clamping plate (1) is provided with a material taking part (2) for grabbing the injection molded part (7) from the injection molding machine mold and a material loading part (3) for placing the injection molded part (7) into the injection molding machine mold. The loading part (3) includes a loading claw mechanism, a pressure plate (4) disposed on the outer periphery of the claw mechanism, a guide post (5) mounted on the end face of the clamping plate (1), and a spring (6) disposed outside the guide post (5). The pressure plate (4) is sleeved on the guide post (5) and slides along the axial direction of the guide post (5). The spring (6) pushes the pressure plate (4) outward. The pressure plate (4) can be pressed against the end face of the injection molded part (7).

2. The material handling claw for multi-stage injection molding as described in claim 1, characterized in that: The loading jaw mechanism includes an inner clamping mounting base (8), inner jaws (9), a connecting rod (10), and a sliding rod (11). The inner clamping mounting base (8) is fixedly disposed on the end face of the clamp plate (1). Several inner jaws (9) are arranged along the circumferential direction and hinged to the inner clamping mounting base (8). The sliding rod (11) slides through the inner clamping mounting base (8). The end of the sliding rod (11) is provided with an inner clamping cylinder (12) for driving the sliding rod (11) to slide. One end of the connecting rod (10) is hinged to the inner jaws (9), and the other end is hinged to the sliding rod (11).

3. The material handling claw for multi-stage injection molding as described in claim 2, characterized in that: The material handling part (2) includes an outer clamping mounting base (13) and an outer clamping claw (14). Several outer clamping claws (14) are arranged on the outer clamping mounting base (13) in a circumferential direction. The outer clamping claws (14) move radially under the drive of the outer clamping cylinder (15) in order to grip the injection molded part (7).

4. The material handling claw for multi-stage injection molding as described in claim 3, characterized in that: The back of the clamp plate (1) is provided with a slewing bearing hole (16) for connecting to the operating robotic arm of the injection molding machine.

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