Pick-up device of injection molding machine

Abstract

The utility model relates to an injection molding machine part taking device which comprises a mechanical arm structure, a clamp, a clamp connecting structure and a part falling structure, the mechanical arm structure is connected with the clamp through the clamp connecting structure, and the mechanical arm structure is used for transporting a formed part formed by an injection molding machine to the part falling structure through the clamp. And the clamp connecting structure is a quick-change mechanism capable of being automatically disassembled and assembled. According to the mechanical arm, under the condition that manual intervention is not needed, full-automatic clamp replacement can be achieved, the production automation degree is further improved, the production efficiency is improved, the error rate is reduced, and the production quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine devices, and more specifically, to a piece taking device for an injection molding machine. Background Art

[0002] The take-up structure of the injection molding machine is an important part used to take out the molded parts from the mold. It usually includes the following main components: the robot arm, which is the core part of the take-up mechanism and is responsible for taking out the molded parts from the mold. It is usually composed of multiple joints to provide multi-directional movement capabilities. The design and structure of the robot arm directly affect the speed, accuracy and flexibility of the take-up; the gripping device: the gripping device is located at the end of the robot arm and is used to grab and fix the molded parts. These devices can be clamps, vacuum suction cups, grippers or other special designs to ensure that the molded parts can be safely extracted and moved; the drop rack (elevator), the drop rack is a device used to receive and support the molded parts taken out of the mold. It is usually located below the take-up mechanism and is responsible for receiving the molded parts stably and safely and moving them to the next step or facilitating manual pick-up and placement. Control system: The take-up structure is usually integrated with the overall control system of the injection molding machine. Such a design allows the take-up process to be synchronized with the entire injection molding cycle to ensure that the molded parts are accurately and timely taken out. However, different parts need to be picked up by different gripping devices installed on the robot arm. The traditional replacement method is manual replacement, which is inefficient and may result in replacement errors.

[0003] The prior art discloses an injection molding device, including an extrusion device, a mold device, a drain device, and a manipulator device for grabbing a plastic part and moving it from the mold device to the drain device, the manipulator device including a first manipulator in the X-axis direction, a second manipulator in the Y-axis direction, a third manipulator in the Z-axis direction, and a first clamp for clamping the plastic part, the first clamp being connected to the end of the third manipulator. When the plastic parts are respectively a spline and a color plate, different first clamps need to be replaced manually, resulting in low automation and low efficiency. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide an injection molding machine taking-out device, which can realize automatic replacement of the grabbing device by a mechanical arm and improve the degree of automation and operating efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provided is an injection molding machine picking device, comprising a mechanical arm structure, a clamp, a clamp connection structure and a drop structure, wherein the mechanical arm structure is connected to the clamp via the clamp connection structure, the mechanical arm structure is used to transport molded parts formed by the injection molding machine to the drop structure via the clamp, and the clamp connection structure is a quick-change mechanism that can be automatically detached.

[0007] The injection molding machine picking device of the utility model, when in use, after the injection molding machine completes the processing work, the mechanical arm structure automatically replaces the corresponding type of clamps according to the type of the molded parts through the automatically detachable quick-change mechanism, so as to clamp the molded parts and place them on the drop structure. In the utility model, the mechanical arm can realize full-automatic replacement of clamps without human intervention, further improving the degree of production automation, improving production efficiency, reducing the error rate, and ensuring production quality.

[0008] Furthermore, the quick-change mechanism includes a first quick-change part and a second quick-change part, the first quick-change part is installed on the mechanical arm structure, the second quick-change part is installed on the fixture, and the first quick-change part and the second quick-change part are detachably connected.

[0009] Furthermore, it also includes a fixture library, which is used to accommodate the fixtures. The mechanical arm structure can be moved to the fixture library, and the mechanical arm structure can detachably install the fixture through the fixture connection structure.

[0010] Furthermore, the fixture library includes a guardrail and a fixture rack, the guardrail encloses a space for accommodating a plurality of the fixture racks, and the plurality of fixtures are placed on the fixture racks respectively.

[0011] Furthermore, the drop structure includes a supporting mechanism, a lifting mechanism and a lifting mechanism, the lifting mechanism is installed on the supporting mechanism, the output end of the lifting mechanism is connected to the lifting mechanism, and the lifting mechanism is used to hold the molded parts.

[0012] Furthermore, the lifting mechanism includes a lifting motor, a slider and a guide rail. The lifting motor is installed on the supporting mechanism. The output end of the lifting motor is transmission-connected to the lifting mechanism. The guide rail is installed on the supporting mechanism. The lifting mechanism is fixedly connected to the slider, and the slider is slidably connected to the guide rail.

[0013] Furthermore, the support mechanism can be detachably mounted on the ground.

[0014] Furthermore, a hanging ring is provided on the top of the supporting mechanism.

[0015] Furthermore, the robotic arm structure includes a base, a six-axis robot, and a connecting arm. The six-axis robot is movably mounted on the base, one end of the connecting arm is connected to the six-axis robot, and the other end of the connecting arm is connected to the fixture via the quick-change mechanism.

[0016] Furthermore, the fixture includes a mounting plate, the mounting plate is provided with a plurality of clamping mechanisms for clamping the molded parts, and the mechanical arm structure is connected to the mounting plate via a quick-change mechanism.

[0017] Compared with the prior art, the utility model has the beneficial effects of enabling the mechanical arm to automatically replace the grasping device, thereby improving the degree of automation and operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the mechanical arm structure in an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A magnified view of the part A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the mechanical arm in the embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixture frame in the embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the drop structure in the first viewing angle in the embodiment of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the drop structure in the second viewing angle in the embodiment of the utility model.

[0024] In the attached drawings: 1-mechanical arm structure; 11-base; 12-six-axis robot; 13-connecting arm; 2-clamp; 3-clamp connecting structure; 4-dropping structure; 41-support mechanism; 411-lifting ring; 42-lifting mechanism; 421-lifting motor; 422-guide rail; 43-lifting mechanism; 5-clamp library; 51-guardrail; 52-clamp rack. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0026] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Embodiment 1

[0028] An injection molding machine taking-out device, such as Figures 1 to 3 , Figure 5 and Figure 6 As shown, it includes a robot arm structure 1, a clamp 2, a clamp connection structure 3 and a drop structure 4. The robot arm structure 1 is connected to the clamp 2 through the clamp connection structure 3. The robot arm structure 1 is used to transport the molded parts formed by the injection molding machine to the drop structure 4 through the clamp 2; the clamp connection structure 3 is a quick-change mechanism that can be automatically disassembled.

[0029] When the above-mentioned injection molding machine picking device is in use, after the injection molding machine completes the processing work, the robot arm structure 1 automatically replaces the corresponding type of clamp 2 according to the type of the molded part through an automatically detachable quick-change mechanism, so as to clamp the molded part and place it on the drop structure 4. In this embodiment, the robot arm can realize fully automatic replacement of the clamp 2 without the need for human intervention, thereby further improving the degree of production automation, improving production efficiency, reducing the error rate, and ensuring production quality.

[0030] The quick-change mechanism includes a first quick-change part and a second quick-change part. The first quick-change part is installed on the robot arm structure 1, and the second quick-change part is installed on the fixture 2. The first quick-change part and the second quick-change part are detachably connected. In this embodiment, the connection between the first quick-change part and the second quick-change part is a quick-change disk design. The connection mode of the quick-change disk can adopt mechanical connection, hydraulic connection or pneumatic control connection. The above connection methods can all realize fully automatic disassembly and connection between the first quick-change part and the second quick-change part.

[0031] like Figures 1 to 3 As shown, the robotic arm structure 1 includes a base 11, a six-axis robot 12, and a connecting arm 13. The six-axis robot 12 is movably installed on the base 11, one end of the connecting arm 13 is connected to the six-axis robot 12, and the other end of the connecting arm 13 is installed with a first quick-change part, and the fixture 2 is installed with a second quick-change part. Through the connection between the first quick-change part and the second quick-change part, the connecting arm 13 can be detachably connected to the fixture 2.

[0032] In this embodiment, the six-axis robot 12 has the characteristic of free movement in all directions, i.e., six degrees of freedom, which further improves the movement flexibility of the connecting arm 13, so that the clamp 2 can have more movement modes and a wider range of movement, so as to clamp the molded parts in different positions and place them in the drop structure 4.

[0033] When in use, the docking mode between the first quick-change part and the second quick-change part on different fixtures 2 is pre-set through the control system in the injection molding machine, so that the six-axis robot 12 can identify the categories of different molded parts, thereby automatically replacing different categories of fixtures 2 without manual replacement of the fixture 2, thereby further improving production efficiency, reducing the error rate, and improving production quality.

[0034] The clamp 2 includes a mounting plate, which is provided with a plurality of clamping mechanisms for clamping molded parts. The mechanical arm structure 1 is connected to the mounting plate through a quick-change mechanism, and the mounting plate is installed with a second quick-change part. In the present embodiment, the clamping mechanism is designed as a plurality of clamping jaws installed at different positions on the mounting plate, and a picking cylinder is installed on the clamping jaw. The control system and the clamping jaws on the injection molding machine are respectively communicated with the picking cylinder, and the operation of the picking cylinder is controlled by the control system to control the clamping jaw. In addition, a balancing block for balancing is also installed on the mounting plate. When in use, the connecting arm 13 is connected to the mounting plate, and the six-axis robot 12 controls the movement of the mounting plate to the molded part through the connecting arm 13, and drives the clamping jaws through the picking cylinder to grab the molded part and transport it to the drop structure 4.

[0035] Embodiment 2

[0036] This embodiment is similar to the first embodiment, except that Figure 3 As shown, it also includes a fixture library 5, which is used to accommodate fixtures 2. The robot arm structure 1 can be moved to the fixture library 5. The robot arm structure 1 can detachably install the fixture 2 through the fixture connection structure 3. When in use, different types of fixtures 2 corresponding to the molded parts are placed in the fixture library 5. After the injection molding machine processes the molded parts, the robot arm structure 1 replaces different types of fixtures 2 in the fixture library 5 to clamp and transport the molded parts.

[0037] like Figures 1 to 3 As shown, the fixture library 5 includes a guardrail 51 and a fixture rack 52. The guardrail 51 encloses a space for accommodating a plurality of fixture racks 52. A plurality of fixtures 2 are placed on the fixture racks 52. In this embodiment, the fixtures 2 are placed on the fixture racks 52. The structure of the fixture racks 52 is as shown in FIG. Figure 4As shown, it is convenient for the robot arm structure 1 to take out the clamp 2. At the same time, the clamp frame 52 also fixes the clamp 2, so that the clamp 2 can be stored in an orderly and stable manner, which is convenient for the robot arm structure 1 to remember and take out different positions of the clamp 2. The guardrail 51 is arranged around the clamp frame 52 to protect the clamp frame 52 and the clamp 2 in the clamp frame 52, preventing the staff from accidentally touching the clamp 2 and the clamp frame 52, causing the position of the clamp 2 to shift, affecting production.

[0038] Embodiment 3

[0039] This embodiment is similar to the second embodiment, except that Figure 5 , Figure 6 As shown, the drop structure 4 includes a supporting mechanism 41, a lifting mechanism 42 and a lifting mechanism 43. The lifting mechanism 42 is installed on the supporting mechanism 41. The output end of the lifting mechanism 42 is connected to the lifting mechanism 43. The lifting mechanism 43 is used to hold the molded parts.

[0040] Specifically, Figure 5 , Figure 6 As shown, the lifting mechanism 42 includes a lifting motor 421, a slider and a guide rail 422. The lifting motor is installed on the support mechanism 41. The output end of the lifting motor 421 is connected to the lifting mechanism 43. The guide rail 422 is installed on the support mechanism 41. The lifting mechanism 43 is fixedly connected to the slider, and the slider is slidably connected to the guide rail 422. When in use, the mechanical arm structure 1 controls the clamp 2 to go to the injection molding machine to clamp the molded part, and place the molded part in the lifting mechanism 43. The lifting mechanism 43 can be controlled to rise and fall through the lifting motor 421 to meet different height requirements.

[0041] The support mechanism 41 can be detachably mounted on the ground. In this embodiment, the bottom of the support mechanism 41 is fixed to the ground by detachable bolts. Figure 5 , Figure 6 As shown, a lifting ring 411 is also provided on the top of the supporting mechanism 41. The lifting ring 411 can be used for transporting the drop structure 4 by the transport mechanism. The lifting ring 411 is arranged at the center of gravity of the drop structure 4 to ensure the stability of the drop structure 4 when being transported by the lifting ring 411 to prevent accidents such as tipping. When in use, the drop structure 4 is no longer limited to a fixed location, but can be flexibly transferred according to actual production conditions. Specifically, when it is necessary to transfer the drop structure 4, the detachable bolts are removed and the drop structure 4 can be separated from the ground. At this time, the drop structure 4 can be lifted and transported to other locations by connecting the lifting ring 411 to the crane through a transport mechanism such as a crane, thereby realizing the transfer of the drop structure 4, greatly improving the flexibility of production and the versatility of the drop structure 4, and further improving the area and space utilization within the factory.

[0042] In addition, the electrical circuit interface of the drop structure 4 and the compressed air interface of the pickup cylinder are connected by aviation joints, which can be quickly disassembled and installed, further allowing the drop structure 4 to be quickly disassembled and moved when needed.

[0043] The use process of the utility model is as follows: the docking mode between the mechanical arm structure 1 and different clamps 2 and different types of molded parts is set in advance through the control system of the injection molding machine. After the injection molding machine processes the molded parts, the six-axis robot 12 controls the connecting arm 13 by identifying different types of molded parts. After the corresponding type of clamp 2 is automatically connected through the quick-change mechanism, the clamp 2 moves to the molded part, and the molded part is clamped by the clamping claw controlled by the picking cylinder. Then, the molded part is transferred to the lifting mechanism 43 of the drop structure 4. The lifting mechanism 43 controls the movement through the lifting mechanism 42 to realize the transportation of the molded parts and transport the molded parts to the designated position. In addition, the support mechanism 41 is provided with a lifting ring 411 and a detachable bolt, which can realize the rapid transfer of the drop structure 4 according to needs.

[0044] The beneficial effects of the present invention are as follows: (1) by designing a six-axis robot 12 and a quick-change mechanism, the fully automatic replacement of the fixture 2 and the large-range movement of the fixture 2 are realized, which greatly reduces the operation time, significantly improves the production efficiency, and reduces the production cost; (2) by fully automatically replacing the fixture 2, the labor is reduced, the potential injuries and accidents in the production process are reduced, and the safety of production is improved; (3) by the detachable and movable design of the drop structure 4, the utilization rate of the production space is greatly improved, the flexibility of production is improved, and more optimization space is provided for the production line layout.

[0045] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A device for removing parts from an injection molding machine, comprising a mechanical arm structure (1), a clamp (2), a clamp connection structure (3) and a part drop structure (4), wherein the mechanical arm structure (1) is connected to the clamp (2) via the clamp connection structure (3), and the mechanical arm structure (1) is used to transport a molded part formed by the injection molding machine to the part drop structure (4) via the clamp (2), and is characterized in that: The clamp connection structure (3) is a quick-change mechanism that can be automatically detached.

2. The device for removing parts from an injection molding machine according to claim 1, characterized in that: The quick-change mechanism comprises a first quick-change part and a second quick-change part, wherein the first quick-change part is mounted on the mechanical arm structure (1), and the second quick-change part is mounted on the clamp (2), and the first quick-change part and the second quick-change part are detachably connected.

3. The device for removing parts from an injection molding machine according to claim 1, characterized in that: It also includes a fixture library (5), wherein the fixture library (5) is used to accommodate the fixture (2), the mechanical arm structure (1) can be moved to the fixture library (5), and the mechanical arm structure (1) can detachably install the fixture (2) through the fixture connection structure (3).

4. The device for taking out a component from an injection molding machine according to claim 3, characterized in that: The fixture library (5) comprises a guardrail (51) and a fixture rack (52); the guardrail (51) encloses a space for accommodating a plurality of the fixture racks (52); and a plurality of the fixtures (2) are respectively placed on the fixture racks (52).

5. The device for taking out a component from an injection molding machine according to claim 1, characterized in that: The drop structure (4) comprises a supporting mechanism (41), a lifting mechanism (42) and a lifting mechanism (43); the lifting mechanism (42) is installed on the supporting mechanism (41); the output end of the lifting mechanism (42) is connected to the lifting mechanism (43); and the lifting mechanism (43) is used to hold the molded parts.

6. The device for taking out a component from an injection molding machine according to claim 5, characterized in that: The lifting mechanism (42) comprises a lifting motor (421), a slider and a guide rail (422); the lifting motor (421) is mounted on the supporting mechanism (41); the output end of the lifting motor (421) is transmission-connected to the lifting mechanism (43); the guide rail (422) is mounted on the supporting mechanism (41); the lifting mechanism (43) is fixedly connected to the slider; and the slider is slidably connected to the guide rail (422).

7. The device for taking out a component from an injection molding machine according to claim 5, characterized in that: The support mechanism (41) can be detachably mounted on the ground.

8. The device for taking out a component from an injection molding machine according to claim 5, characterized in that: A hanging ring (411) is also provided on the top of the supporting mechanism (41).

9. The device for removing parts from an injection molding machine according to any one of claims 1 to 8, characterized in that: The mechanical arm structure (1) comprises a base (11), a six-axis robot (12), and a connecting arm (13); the six-axis robot (12) is movably mounted on the base (11); one end of the connecting arm (13) is connected to the six-axis robot (12); and the other end of the connecting arm (13) is connected to the clamp (2) via the quick-change mechanism.

10. The device for removing parts from an injection molding machine according to any one of claims 1 to 8, characterized in that: The clamp (2) comprises a mounting plate, the mounting plate is provided with a plurality of clamping mechanisms for clamping the formed parts, and the mechanical arm structure (1) is connected to the mounting plate via the quick-change mechanism.

Images